50520997 has 2 divisors, whose sum is σ = 50520998. Its totient is φ = 50520996.

The previous prime is 50520989. The next prime is 50521027. The reversal of 50520997 is 79902505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49196196 + 1324801 = 7014^2 + 1151^2 .

It is a cyclic number.

It is not a de Polignac number, because 50520997 - 2³ = 50520989 is a prime.

It is a super-2 number, since 2×50520997² = 5104742275748018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50520097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25260498 + 25260499.

It is an arithmetic number, because the mean of its divisors is an integer number (25260499).

Almost surely, 2^50520997 is an apocalyptic number.

It is an amenable number.

50520997 is a deficient number, since it is larger than the sum of its proper divisors (1).

50520997 is an equidigital number, since it uses as much as digits as its factorization.

50520997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 50520997 is about 7107.8123920092. The cubic root of 50520997 is about 369.6783106062.

The spelling of 50520997 in words is "fifty million, five hundred twenty thousand, nine hundred ninety-seven".