51025535444765 has 8 divisors (see below), whose sum is σ = 69977877181440. Its totient is φ = 34988938590672.

The previous prime is 51025535444687. The next prime is 51025535444803. The reversal of 51025535444765 is 56744453552015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51025535444765 - 2³⁶ = 50956815968029 is a prime.

It is a super-3 number, since 3×51025535444765³ (a number of 42 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51025535444765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728936220605 + ... + 728936220674.

It is an arithmetic number, because the mean of its divisors is an integer number (8747234647680).

Almost surely, 2^{51025535444765} is an apocalyptic number.

It is an amenable number.

51025535444765 is a deficient number, since it is larger than the sum of its proper divisors (18952341736675).

51025535444765 is a wasteful number, since it uses less digits than its factorization.

51025535444765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457872441291.

The product of its (nonzero) digits is 50400000, while the sum is 56.

The spelling of 51025535444765 in words is "fifty-one trillion, twenty-five billion, five hundred thirty-five million, four hundred forty-four thousand, seven hundred sixty-five".