51123531610 has 64 divisors (see below), whose sum is σ = 97497561600. Its totient is φ = 19247155200.

The previous prime is 51123531607. The next prime is 51123531619. The reversal of 51123531610 is 1613532115.

It is a super-2 number, since 2×51123531610² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51123531619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24565770 + ... + 24567850.

It is an arithmetic number, because the mean of its divisors is an integer number (1523399400).

Almost surely, 2^51123531610 is an apocalyptic number.

51123531610 is a deficient number, since it is larger than the sum of its proper divisors (46374029990).

51123531610 is a wasteful number, since it uses less digits than its factorization.

51123531610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887.

The product of its (nonzero) digits is 2700, while the sum is 28.

The spelling of 51123531610 in words is "fifty-one billion, one hundred twenty-three million, five hundred thirty-one thousand, six hundred ten".