53099856 has 60 divisors (see below), whose sum is σ = 149245408. Its totient is φ = 17623872.

The previous prime is 53099819. The next prime is 53099861. The reversal of 53099856 is 65899035.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40101 + ... + 41403.

Almost surely, 2^53099856 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 53099856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74622704).

53099856 is an abundant number, since it is smaller than the sum of its proper divisors (96145552).

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

53099856 is a wasteful number, since it uses less digits than its factorization.

53099856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600 (or 1591 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 53099856 is about 7286.9648002443. The cubic root of 53099856 is about 375.8643316184.

The spelling of 53099856 in words is "fifty-three million, ninety-nine thousand, eight hundred fifty-six".