51025924447990 has 32 divisors (see below), whose sum is σ = 92518598538144. Its totient is φ = 20261055893760.

The previous prime is 51025924447943. The next prime is 51025924447991. The reversal of 51025924447990 is 9974442952015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025924447991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93560772 + ... + 94104568.

It is an arithmetic number, because the mean of its divisors is an integer number (2891206204317).

Almost surely, 2^{51025924447990} is an apocalyptic number.

51025924447990 is a deficient number, since it is larger than the sum of its proper divisors (41492674090154).

51025924447990 is a wasteful number, since it uses less digits than its factorization.

51025924447990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612432.

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 51025924447990 in words is "fifty-one trillion, twenty-five billion, nine hundred twenty-four million, four hundred forty-seven thousand, nine hundred ninety".