55406455 has 24 divisors (see below), whose sum is σ = 74069856. Its totient is φ = 39551040.

The previous prime is 55406441. The next prime is 55406459. The reversal of 55406455 is 55460455.

It is not a de Polignac number, because 55406455 - 2⁵ = 55406423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55406455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55406459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62022 + ... + 62908.

It is an arithmetic number, because the mean of its divisors is an integer number (3086244).

Almost surely, 2^55406455 is an apocalyptic number.

55406455 is a deficient number, since it is larger than the sum of its proper divisors (18663401).

55406455 is a wasteful number, since it uses less digits than its factorization.

55406455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 55406455 is about 7443.5512358014. The cubic root of 55406455 is about 381.2297532919.

Adding to 55406455 its product of nonzero digits (60000), we get a palindrome (55466455).

The spelling of 55406455 in words is "fifty-five million, four hundred six thousand, four hundred fifty-five".