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56787616325 = 5211206500423
BaseRepresentation
bin110100111000110011…
…100100001001000101
312102120121220210210002
4310320303210021011
51412300112210300
642030551411045
74050151526426
oct647063441105
9172517823702
1056787616325
11220a1146720
12b00a083a85
135480073b4b
142a69da364d
15172570a5d5
hexd38ce4245

56787616325 has 12 divisors (see below), whose sum is σ = 76818157728. Its totient is φ = 41300084400.

The previous prime is 56787616313. The next prime is 56787616339. The reversal of 56787616325 is 52361678765.

It is not a de Polignac number, because 56787616325 - 26 = 56787616261 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 11 ways as a sum of consecutive naturals, for example, 103249937 + ... + 103250486.

It is an arithmetic number, because the mean of its divisors is an integer number (6401513144).

Almost surely, 256787616325 is an apocalyptic number.

56787616325 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56787616325 is a deficient number, since it is larger than the sum of its proper divisors (20030541403).

56787616325 is a wasteful number, since it uses less digits than its factorization.

56787616325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206500444 (or 206500439 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 56.

The spelling of 56787616325 in words is "fifty-six billion, seven hundred eighty-seven million, six hundred sixteen thousand, three hundred twenty-five".

Divisors: 1 5 11 25 55 275 206500423 1032502115 2271504653 5162510575 11357523265 56787616325