52231507 has 2 divisors, whose sum is σ = 52231508. Its totient is φ = 52231506.

The previous prime is 52231477. The next prime is 52231549. The reversal of 52231507 is 70513225.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52231507 is a prime.

It is not a weakly prime, because it can be changed into another prime (52231567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26115753 + 26115754.

It is an arithmetic number, because the mean of its divisors is an integer number (26115754).

Almost surely, 2^52231507 is an apocalyptic number.

52231507 is a deficient number, since it is larger than the sum of its proper divisors (1).

52231507 is an equidigital number, since it uses as much as digits as its factorization.

52231507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 52231507 is about 7227.1368466357. The cubic root of 52231507 is about 373.8042075266.

The spelling of 52231507 in words is "fifty-two million, two hundred thirty-one thousand, five hundred seven".