53775888 has 80 divisors (see below), whose sum is σ = 143145600. Its totient is φ = 17390592.

The previous prime is 53775857. The next prime is 53775899. The reversal of 53775888 is 88857735.

It is a super-2 number, since 2×53775888² = 5783692260377088, which contains 22 as substring.

Its product of digits (1881600) is a multiple of the sum of its prime factors (336).

It is a self number, because there is not a number n which added to its sum of digits gives 53775888.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360838 + ... + 360986.

It is an arithmetic number, because the mean of its divisors is an integer number (1789320).

Almost surely, 2^53775888 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 53775888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71572800).

53775888 is an abundant number, since it is smaller than the sum of its proper divisors (89369712).

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

53775888 is a wasteful number, since it uses less digits than its factorization.

53775888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 330 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 51.

The square root of 53775888 is about 7333.2044837165. The cubic root of 53775888 is about 377.4526946849.

The spelling of 53775888 in words is "fifty-three million, seven hundred seventy-five thousand, eight hundred eighty-eight".