53415644 has 12 divisors (see below), whose sum is σ = 93652104. Its totient is φ = 26657904.

The previous prime is 53415623. The next prime is 53415647. The reversal of 53415644 is 44651435.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 53415644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53415647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10019 + ... + 14394.

It is an arithmetic number, because the mean of its divisors is an integer number (7804342).

Almost surely, 2^53415644 is an apocalyptic number.

It is an amenable number.

53415644 is a deficient number, since it is larger than the sum of its proper divisors (40236460).

53415644 is a wasteful number, since it uses less digits than its factorization.

53415644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24964 (or 24962 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 53415644 is about 7308.6006868620. The cubic root of 53415644 is about 376.6079552768.

The spelling of 53415644 in words is "fifty-three million, four hundred fifteen thousand, six hundred forty-four".