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52915025 = 522116601
BaseRepresentation
bin1100100111011…
…0101101010001
310200120100202202
43021312231101
5102021240100
65130052545
71211525132
oct311665521
9120510682
1052915025
1127961929
121587a155
13ac69187
147055c89
1549a37d5
hex3276b51

52915025 has 6 divisors (see below), whose sum is σ = 65614662. Its totient is φ = 42332000.

The previous prime is 52915013. The next prime is 52915063. The reversal of 52915025 is 52051925.

It can be written as a sum of positive squares in 3 ways, for example, as 18496 + 52896529 = 136^2 + 7273^2 .

It is not a de Polignac number, because 52915025 - 212 = 52910929 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1058276 + ... + 1058325.

It is an arithmetic number, because the mean of its divisors is an integer number (10935777).

Almost surely, 252915025 is an apocalyptic number.

It is an amenable number.

52915025 is a deficient number, since it is larger than the sum of its proper divisors (12699637).

52915025 is a wasteful number, since it uses less digits than its factorization.

52915025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116611 (or 2116606 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 52915025 is about 7274.2714411823. The cubic root of 52915025 is about 375.4277193716.

The spelling of 52915025 in words is "fifty-two million, nine hundred fifteen thousand, twenty-five".

Divisors: 1 5 25 2116601 10583005 52915025