53570816 has 36 divisors (see below), whose sum is σ = 115165092. Its totient is φ = 24723456.

The previous prime is 53570813. The next prime is 53570827. The reversal of 53570816 is 61807535.

It can be written as a sum of positive squares in 2 ways, for example, as 18524416 + 35046400 = 4304^2 + 5920^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53570813) 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, 4721 + ... + 11376.

Almost surely, 2^53570816 is an apocalyptic number.

It is an amenable number.

53570816 is an abundant number, since it is smaller than the sum of its proper divisors (61594276).

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

53570816 is a wasteful number, since it uses less digits than its factorization.

53570816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16126 (or 16112 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 53570816 is about 7319.2087003992. The cubic root of 53570816 is about 376.9722837028.

The spelling of 53570816 in words is "fifty-three million, five hundred seventy thousand, eight hundred sixteen".