53531507 has 2 divisors, whose sum is σ = 53531508. Its totient is φ = 53531506.

The previous prime is 53531501. The next prime is 53531509. The reversal of 53531507 is 70513535.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53531507 - 2⁸ = 53531251 is a prime.

Together with 53531509, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53531507.

It is not a weakly prime, because it can be changed into another prime (53531501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26765753 + 26765754.

It is an arithmetic number, because the mean of its divisors is an integer number (26765754).

Almost surely, 2^53531507 is an apocalyptic number.

53531507 is a deficient number, since it is larger than the sum of its proper divisors (1).

53531507 is an equidigital number, since it uses as much as digits as its factorization.

53531507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7875, while the sum is 29.

The square root of 53531507 is about 7316.5228763396. The cubic root of 53531507 is about 376.8800566873.

The spelling of 53531507 in words is "fifty-three million, five hundred thirty-one thousand, five hundred seven".