53309952 has 120 divisors (see below), whose sum is σ = 160864704. Its totient is φ = 16963584.

The previous prime is 53309951. The next prime is 53309969. The reversal of 53309952 is 25990335.

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 (53309951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105733 + ... + 106235.

Almost surely, 2^53309952 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 53309952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80432352).

53309952 is an abundant number, since it is smaller than the sum of its proper divisors (107554752).

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

53309952 is a wasteful number, since it uses less digits than its factorization.

53309952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 36.

The square root of 53309952 is about 7301.3664474535. The cubic root of 53309952 is about 376.3593968195.

The spelling of 53309952 in words is "fifty-three million, three hundred nine thousand, nine hundred fifty-two".