55400562 has 24 divisors (see below), whose sum is σ = 137182656. Its totient is φ = 15828696.

The previous prime is 55400557. The next prime is 55400563. The reversal of 55400562 is 26500455.

55400562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55400563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219718 + ... + 219969.

It is an arithmetic number, because the mean of its divisors is an integer number (5715944).

Almost surely, 2^55400562 is an apocalyptic number.

55400562 is an abundant number, since it is smaller than the sum of its proper divisors (81782094).

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

55400562 is a wasteful number, since it uses less digits than its factorization.

55400562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439702 (or 439699 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 55400562 is about 7443.1553792730. The cubic root of 55400562 is about 381.2162370173.

The spelling of 55400562 in words is "fifty-five million, four hundred thousand, five hundred sixty-two".