50518537 has 2 divisors, whose sum is σ = 50518538. Its totient is φ = 50518536.

The previous prime is 50518477. The next prime is 50518547. The reversal of 50518537 is 73581505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49617936 + 900601 = 7044^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 50518537 - 2²³ = 42129929 is a prime.

It is not a weakly prime, because it can be changed into another prime (50518547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25259268 + 25259269.

It is an arithmetic number, because the mean of its divisors is an integer number (25259269).

Almost surely, 2^50518537 is an apocalyptic number.

It is an amenable number.

50518537 is a deficient number, since it is larger than the sum of its proper divisors (1).

50518537 is an equidigital number, since it uses as much as digits as its factorization.

50518537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 50518537 is about 7107.6393408782. The cubic root of 50518537 is about 369.6723103063.

The spelling of 50518537 in words is "fifty million, five hundred eighteen thousand, five hundred thirty-seven".