51562741240 has 64 divisors (see below), whose sum is σ = 121984380000. Its totient is φ = 19587402240.

The previous prime is 51562741187. The next prime is 51562741267. The reversal of 51562741240 is 4214726515.

It is a self number, because there is not a number n which added to its sum of digits gives 51562741240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293590 + ... + 435109.

Almost surely, 2^51562741240 is an apocalyptic number.

It is an amenable number.

51562741240 is an abundant number, since it is smaller than the sum of its proper divisors (70421638760).

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

51562741240 is a wasteful number, since it uses less digits than its factorization.

51562741240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728800 (or 728796 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 51562741240 in words is "fifty-one billion, five hundred sixty-two million, seven hundred forty-one thousand, two hundred forty".