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70560025 = 5211324977
BaseRepresentation
bin1000011010010…
…10100100011001
311220202211011021
410031022210121
5121030410100
611000202441
71514515234
oct415124431
9156684137
1070560025
1136913878
121b769421
13118066c3
14952a41b
1562dba1a
hex434a919

70560025 has 12 divisors (see below), whose sum is σ = 88272252. Its totient is φ = 55946240.

The previous prime is 70560011. The next prime is 70560041. The reversal of 70560025 is 52006507.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 35856144 + 34703881 = 5988^2 + 5891^2 .

It is not a de Polignac number, because 70560025 - 27 = 70559897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9664 + ... + 15313.

It is an arithmetic number, because the mean of its divisors is an integer number (7356021).

Almost surely, 270560025 is an apocalyptic number.

It is an amenable number.

70560025 is a deficient number, since it is larger than the sum of its proper divisors (17712227).

70560025 is a wasteful number, since it uses less digits than its factorization.

70560025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25100 (or 25095 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 70560025 is about 8400.0014880951. The cubic root of 70560025 is about 413.2246704616.

Subtracting from 70560025 its sum of digits (25), we obtain a square (70560000 = 84002).

It can be divided in two parts, 705600 and 25, that multiplied together give a square (17640000 = 42002).

The spelling of 70560025 in words is "seventy million, five hundred sixty thousand, twenty-five".

Divisors: 1 5 25 113 565 2825 24977 124885 624425 2822401 14112005 70560025