51724526520 has 128 divisors (see below), whose sum is σ = 155834956800. Its totient is φ = 13734572544.

The previous prime is 51724526473. The next prime is 51724526521. The reversal of 51724526520 is 2562542715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51724526521) 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, 46058679 + ... + 46059801.

It is an arithmetic number, because the mean of its divisors is an integer number (1217460600).

Almost surely, 2^51724526520 is an apocalyptic number.

It is an amenable number.

51724526520 is an abundant number, since it is smaller than the sum of its proper divisors (104110430280).

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

51724526520 is a wasteful number, since it uses less digits than its factorization.

51724526520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429 (or 2425 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 51724526520 in words is "fifty-one billion, seven hundred twenty-four million, five hundred twenty-six thousand, five hundred twenty".