53866044 has 18 divisors (see below), whose sum is σ = 136161480. Its totient is φ = 17955336.

The previous prime is 53866037. The next prime is 53866061. The reversal of 53866044 is 44066835.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1496279 = 53866044 / (5 + 3 + 8 + 6 + 6 + 0 + 4 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 748104 + ... + 748175.

Almost surely, 2^53866044 is an apocalyptic number.

It is an amenable number.

53866044 is an abundant number, since it is smaller than the sum of its proper divisors (82295436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53866044 is a wasteful number, since it uses less digits than its factorization.

53866044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496289 (or 1496284 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 53866044 is about 7339.3490174538. The cubic root of 53866044 is about 377.6635117571.

The spelling of 53866044 in words is "fifty-three million, eight hundred sixty-six thousand, forty-four".