53507887 has 2 divisors, whose sum is σ = 53507888. Its totient is φ = 53507886.

The previous prime is 53507879. The next prime is 53507893. The reversal of 53507887 is 78870535.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53507887 - 2³ = 53507879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53507807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26753943 + 26753944.

It is an arithmetic number, because the mean of its divisors is an integer number (26753944).

Almost surely, 2^53507887 is an apocalyptic number.

53507887 is a deficient number, since it is larger than the sum of its proper divisors (1).

53507887 is an equidigital number, since it uses as much as digits as its factorization.

53507887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 53507887 is about 7314.9085435158. The cubic root of 53507887 is about 376.8246175821.

The spelling of 53507887 in words is "fifty-three million, five hundred seven thousand, eight hundred eighty-seven".