53188465 has 16 divisors (see below), whose sum is σ = 72031680. Its totient is φ = 37347520.

The previous prime is 53188453. The next prime is 53188477. The reversal of 53188465 is 56488135.

It is an interprime number because it is at equal distance from previous prime (53188453) and next prime (53188477).

It is not a de Polignac number, because 53188465 - 2⁵ = 53188433 is a prime.

It is a super-3 number, since 3×53188465³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15079 + ... + 18268.

It is an arithmetic number, because the mean of its divisors is an integer number (4501980).

Almost surely, 2^53188465 is an apocalyptic number.

53188465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53188465 is a deficient number, since it is larger than the sum of its proper divisors (18843215).

53188465 is a wasteful number, since it uses less digits than its factorization.

53188465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33392.

The product of its digits is 115200, while the sum is 40.

The square root of 53188465 is about 7293.0422321552. The cubic root of 53188465 is about 376.0732866993.

The spelling of 53188465 in words is "fifty-three million, one hundred eighty-eight thousand, four hundred sixty-five".