52515552 has 24 divisors (see below), whose sum is σ = 137853576. Its totient is φ = 17505152.

The previous prime is 52515523. The next prime is 52515553. The reversal of 52515552 is 25551525.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52515553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273423 + ... + 273614.

It is an arithmetic number, because the mean of its divisors is an integer number (5743899).

Almost surely, 2^52515552 is an apocalyptic number.

It is an amenable number.

52515552 is an abundant number, since it is smaller than the sum of its proper divisors (85338024).

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

52515552 is a wasteful number, since it uses less digits than its factorization.

52515552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547050 (or 547042 counting only the distinct ones).

The product of its digits is 12500, while the sum is 30.

The square root of 52515552 is about 7246.7614835870. The cubic root of 52515552 is about 374.4805893435.

The spelling of 52515552 in words is "fifty-two million, five hundred fifteen thousand, five hundred fifty-two".