51560953620 has 48 divisors (see below), whose sum is σ = 157495278528. Its totient is φ = 12499624960.

The previous prime is 51560953603. The next prime is 51560953637. The reversal of 51560953620 is 2635906515.

It is an interprime number because it is at equal distance from previous prime (51560953603) and next prime (51560953637).

It is a super-2 number, since 2×51560953620² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39060669 + ... + 39061988.

It is an arithmetic number, because the mean of its divisors is an integer number (3281151636).

Almost surely, 2^51560953620 is an apocalyptic number.

It is an amenable number.

51560953620 is an abundant number, since it is smaller than the sum of its proper divisors (105934324908).

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

51560953620 is a wasteful number, since it uses less digits than its factorization.

51560953620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78122680 (or 78122678 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 42.

The spelling of 51560953620 in words is "fifty-one billion, five hundred sixty million, nine hundred fifty-three thousand, six hundred twenty".