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56251236241 = 250972241353
BaseRepresentation
bin110100011000110101…
…011011111110010001
312101012020121212122001
4310120311123332101
51410200304024431
641501431114001
74030646422204
oct643065337621
9171166555561
1056251236241
11219463a13a2
12aa9a512901
1353c5bc1a95
142a18a5b93b
1516e35a7e61
hexd18d5bf91

56251236241 has 4 divisors (see below), whose sum is σ = 56253502692. Its totient is φ = 56248969792.

The previous prime is 56251236203. The next prime is 56251236247. The reversal of 56251236241 is 14263215265.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19337683600 + 36913552641 = 139060^2 + 192129^2 .

It is a cyclic number.

It is not a de Polignac number, because 56251236241 - 213 = 56251228049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56251236241.

It is not an unprimeable number, because it can be changed into a prime (56251236247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095580 + ... + 1145773.

It is an arithmetic number, because the mean of its divisors is an integer number (14063375673).

Almost surely, 256251236241 is an apocalyptic number.

It is an amenable number.

56251236241 is a deficient number, since it is larger than the sum of its proper divisors (2266451).

56251236241 is a wasteful number, since it uses less digits than its factorization.

56251236241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266450.

The product of its digits is 86400, while the sum is 37.

The spelling of 56251236241 in words is "fifty-six billion, two hundred fifty-one million, two hundred thirty-six thousand, two hundred forty-one".

Divisors: 1 25097 2241353 56251236241