52400087 has 2 divisors, whose sum is σ = 52400088. Its totient is φ = 52400086.

The previous prime is 52400041. The next prime is 52400149. The reversal of 52400087 is 78000425.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52400087 - 2¹⁰ = 52399063 is a prime.

It is a Chen prime.

It is equal to p_3136328 and since 52400087 and 3136328 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52400017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26200043 + 26200044.

It is an arithmetic number, because the mean of its divisors is an integer number (26200044).

Almost surely, 2^52400087 is an apocalyptic number.

52400087 is a deficient number, since it is larger than the sum of its proper divisors (1).

52400087 is an equidigital number, since it uses as much as digits as its factorization.

52400087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 52400087 is about 7238.7904376353. The cubic root of 52400087 is about 374.2059333716.

The spelling of 52400087 in words is "fifty-two million, four hundred thousand, eighty-seven".