51621084575260 has 96 divisors (see below), whose sum is σ = 118199240470080. Its totient is φ = 18857886732288.

The previous prime is 51621084575227. The next prime is 51621084575293. The reversal of 51621084575260 is 6257548012615.

It is an interprime number because it is at equal distance from previous prime (51621084575227) and next prime (51621084575293).

It is a super-2 number, since 2×51621084575260² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51621084575198 and 51621084575207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 808230 + ... + 10192909.

It is an arithmetic number, because the mean of its divisors is an integer number (1231242088230).

Almost surely, 2^{51621084575260} is an apocalyptic number.

It is an amenable number.

51621084575260 is an abundant number, since it is smaller than the sum of its proper divisors (66578155894820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51621084575260 is a wasteful number, since it uses less digits than its factorization.

51621084575260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001575 (or 11001573 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 52.

The spelling of 51621084575260 in words is "fifty-one trillion, six hundred twenty-one billion, eighty-four million, five hundred seventy-five thousand, two hundred sixty".