51200546537 has 24 divisors (see below), whose sum is σ = 62181706752. Its totient is φ = 41956252800.

The previous prime is 51200546431. The next prime is 51200546539. The reversal of 51200546537 is 73564500215.

It is a happy number.

It is not a de Polignac number, because 51200546537 - 2³² = 46905579241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51200546537.

It is not an unprimeable number, because it can be changed into a prime (51200546539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2368337 + ... + 2389857.

It is an arithmetic number, because the mean of its divisors is an integer number (2590904448).

Almost surely, 2^51200546537 is an apocalyptic number.

It is an amenable number.

51200546537 is a deficient number, since it is larger than the sum of its proper divisors (10981160215).

51200546537 is a wasteful number, since it uses less digits than its factorization.

51200546537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23669 (or 23662 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 51200546537 in words is "fifty-one billion, two hundred million, five hundred forty-six thousand, five hundred thirty-seven".