53772552 has 64 divisors (see below), whose sum is σ = 150336000. Its totient is φ = 17808192.

The previous prime is 53772539. The next prime is 53772553. The reversal of 53772552 is 25527735.

It is a happy number.

53772552 is a `hidden beast` number, since 5 + 37 + 72 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (53772553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36649 + ... + 38087.

It is an arithmetic number, because the mean of its divisors is an integer number (2349000).

Almost surely, 2^53772552 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 53772552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75168000).

53772552 is an abundant number, since it is smaller than the sum of its proper divisors (96563448).

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

53772552 is a wasteful number, since it uses less digits than its factorization.

53772552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627 (or 1617 counting only the distinct ones).

The product of its digits is 73500, while the sum is 36.

The square root of 53772552 is about 7332.9770216468. The cubic root of 53772552 is about 377.4448894009. Note that the first 3 decimals are identical.

The spelling of 53772552 in words is "fifty-three million, seven hundred seventy-two thousand, five hundred fifty-two".