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54977825 = 527314159
BaseRepresentation
bin1101000110111…
…0010100100001
310211110011101202
43101232110201
5103033242300
65242210545
71235206130
oct321562441
9124404352
1054977825
1129040721
12164b3a55
13b50c076
147431917
154c5ead5
hex346e521

54977825 has 12 divisors (see below), whose sum is σ = 77911680. Its totient is φ = 37698960.

The previous prime is 54977809. The next prime is 54977851. The reversal of 54977825 is 52877945.

It is a happy number.

It is not a de Polignac number, because 54977825 - 24 = 54977809 is a prime.

It is a super-2 number, since 2×549778252 = 6045122483461250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54977825.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156905 + ... + 157254.

It is an arithmetic number, because the mean of its divisors is an integer number (6492640).

Almost surely, 254977825 is an apocalyptic number.

It is an amenable number.

54977825 is a deficient number, since it is larger than the sum of its proper divisors (22933855).

54977825 is a wasteful number, since it uses less digits than its factorization.

54977825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314176 (or 314171 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 54977825 is about 7414.7032981772. The cubic root of 54977825 is about 380.2441298296.

The spelling of 54977825 in words is "fifty-four million, nine hundred seventy-seven thousand, eight hundred twenty-five".

Divisors: 1 5 7 25 35 175 314159 1570795 2199113 7853975 10995565 54977825