55423776 has 24 divisors (see below), whose sum is σ = 145487664. Its totient is φ = 18474560.

The previous prime is 55423733. The next prime is 55423777. The reversal of 55423776 is 67732455.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55423777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288570 + ... + 288761.

It is an arithmetic number, because the mean of its divisors is an integer number (6061986).

Almost surely, 2^55423776 is an apocalyptic number.

It is an amenable number.

55423776 is an abundant number, since it is smaller than the sum of its proper divisors (90063888).

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

55423776 is a wasteful number, since it uses less digits than its factorization.

55423776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577344 (or 577336 counting only the distinct ones).

The product of its digits is 176400, while the sum is 39.

The square root of 55423776 is about 7444.7146352295. The cubic root of 55423776 is about 381.2694754541.

The spelling of 55423776 in words is "fifty-five million, four hundred twenty-three thousand, seven hundred seventy-six".