53044320 has 96 divisors (see below), whose sum is σ = 190971648. Its totient is φ = 12123648.

The previous prime is 53044307. The next prime is 53044339. The reversal of 53044320 is 2344035.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×53044320³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 4534 + ... + 11253.

It is an arithmetic number, because the mean of its divisors is an integer number (1989288).

Almost surely, 2^53044320 is an apocalyptic number.

It is an amenable number.

53044320 is an abundant number, since it is smaller than the sum of its proper divisors (137927328).

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

53044320 is a wasteful number, since it uses less digits than its factorization.

53044320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15812 (or 15804 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 53044320 is about 7283.1531632940. The cubic root of 53044320 is about 375.7332497627.

Adding to 53044320 its reverse (2344035), we get a palindrome (55388355).

It can be divided in two parts, 530 and 44320, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 53044320 in words is "fifty-three million, forty-four thousand, three hundred twenty".