53772544 has 72 divisors (see below), whose sum is σ = 126139328. Its totient is φ = 22394880.

The previous prime is 53772539. The next prime is 53772553. The reversal of 53772544 is 44527735.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65899 + ... + 66709.

Almost surely, 2^53772544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53772544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63069664).

53772544 is an abundant number, since it is smaller than the sum of its proper divisors (72366784).

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

53772544 is an equidigital number, since it uses as much as digits as its factorization.

53772544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871 (or 857 counting only the distinct ones).

The product of its digits is 117600, while the sum is 37.

The square root of 53772544 is about 7332.9764761657. The cubic root of 53772544 is about 377.4448706828. Note that the first 3 decimals are identical.

It can be divided in two parts, 5377 and 2544, that added together give a square (7921 = 89²).

The spelling of 53772544 in words is "fifty-three million, seven hundred seventy-two thousand, five hundred forty-four".