50501651636 has 6 divisors (see below), whose sum is σ = 88377890370. Its totient is φ = 25250825816.

The previous prime is 50501651633. The next prime is 50501651693. The reversal of 50501651636 is 63615610505.

It can be written as a sum of positive squares in only one way, i.e., 41516507536 + 8985144100 = 203756^2 + 94790^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50501651636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50501651633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6312706451 + ... + 6312706458.

It is an arithmetic number, because the mean of its divisors is an integer number (14729648395).

Almost surely, 2^50501651636 is an apocalyptic number.

It is an amenable number.

50501651636 is a deficient number, since it is larger than the sum of its proper divisors (37876238734).

50501651636 is a wasteful number, since it uses less digits than its factorization.

50501651636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12625412913 (or 12625412911 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 50501651636 in words is "fifty billion, five hundred one million, six hundred fifty-one thousand, six hundred thirty-six".