50515457 has 2 divisors, whose sum is σ = 50515458. Its totient is φ = 50515456.

The previous prime is 50515447. The next prime is 50515463. The reversal of 50515457 is 75451505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41267776 + 9247681 = 6424^2 + 3041^2 .

It is a cyclic number.

It is not a de Polignac number, because 50515457 - 2⁴ = 50515441 is a prime.

It is a super-2 number, since 2×50515457² = 5103622791837698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50515417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25257728 + 25257729.

It is an arithmetic number, because the mean of its divisors is an integer number (25257729).

Almost surely, 2^50515457 is an apocalyptic number.

It is an amenable number.

50515457 is a deficient number, since it is larger than the sum of its proper divisors (1).

50515457 is an equidigital number, since it uses as much as digits as its factorization.

50515457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 50515457 is about 7107.4226692944. The cubic root of 50515457 is about 369.6647974610.

The spelling of 50515457 in words is "fifty million, five hundred fifteen thousand, four hundred fifty-seven".