53685607 has 2 divisors, whose sum is σ = 53685608. Its totient is φ = 53685606.

The previous prime is 53685589. The next prime is 53685613. The reversal of 53685607 is 70658635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53685607 - 2¹⁵ = 53652839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53685607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53685617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26842803 + 26842804.

It is an arithmetic number, because the mean of its divisors is an integer number (26842804).

Almost surely, 2^53685607 is an apocalyptic number.

53685607 is a deficient number, since it is larger than the sum of its proper divisors (1).

53685607 is an equidigital number, since it uses as much as digits as its factorization.

53685607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 53685607 is about 7327.0462670847. The cubic root of 53685607 is about 377.2413490700.

The spelling of 53685607 in words is "fifty-three million, six hundred eighty-five thousand, six hundred seven".