53388787 has 2 divisors, whose sum is σ = 53388788. Its totient is φ = 53388786.

The previous prime is 53388761. The next prime is 53388793. The reversal of 53388787 is 78788335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53388787 - 2⁷ = 53388659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53388787.

It is not a weakly prime, because it can be changed into another prime (53388707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26694393 + 26694394.

It is an arithmetic number, because the mean of its divisors is an integer number (26694394).

Almost surely, 2^53388787 is an apocalyptic number.

53388787 is a deficient number, since it is larger than the sum of its proper divisors (1).

53388787 is an equidigital number, since it uses as much as digits as its factorization.

53388787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 49.

The square root of 53388787 is about 7306.7631000327. The cubic root of 53388787 is about 376.5448261087.

The spelling of 53388787 in words is "fifty-three million, three hundred eighty-eight thousand, seven hundred eighty-seven".