55401552 has 30 divisors (see below), whose sum is σ = 155047802. Its totient is φ = 18467136.

The previous prime is 55401547. The next prime is 55401553. The reversal of 55401552 is 25510455.

It can be written as a sum of positive squares in only one way, i.e., 54997056 + 404496 = 7416^2 + 636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55401553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192223 + ... + 192510.

Almost surely, 2^55401552 is an apocalyptic number.

It is an amenable number.

55401552 is an abundant number, since it is smaller than the sum of its proper divisors (99646250).

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

55401552 is a wasteful number, since it uses less digits than its factorization.

55401552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384747 (or 384738 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 55401552 is about 7443.2218830289. The cubic root of 55401552 is about 381.2185077633.

The spelling of 55401552 in words is "fifty-five million, four hundred one thousand, five hundred fifty-two".