53408856 has 32 divisors (see below), whose sum is σ = 133873200. Its totient is φ = 17756160.

The previous prime is 53408843. The next prime is 53408857. The reversal of 53408856 is 65880435.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53408857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7096 + ... + 12536.

Almost surely, 2^53408856 is an apocalyptic number.

It is an amenable number.

53408856 is an abundant number, since it is smaller than the sum of its proper divisors (80464344).

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

53408856 is a wasteful number, since it uses less digits than its factorization.

53408856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5859 (or 5855 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 53408856 is about 7308.1362877275. The cubic root of 53408856 is about 376.5920016291.

It can be divided in two parts, 5340 and 8856, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 53408856 in words is "fifty-three million, four hundred eight thousand, eight hundred fifty-six".