55356945 has 16 divisors (see below), whose sum is σ = 101224320. Its totient is φ = 25305984.

The previous prime is 55356877. The next prime is 55356949. The reversal of 55356945 is 54965355.

It is not a de Polignac number, because 55356945 - 2⁸ = 55356689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55356897 and 55356906.

It is not an unprimeable number, because it can be changed into a prime (55356949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263500 + ... + 263709.

It is an arithmetic number, because the mean of its divisors is an integer number (6326520).

Almost surely, 2^55356945 is an apocalyptic number.

It is an amenable number.

55356945 is a deficient number, since it is larger than the sum of its proper divisors (45867375).

55356945 is a wasteful number, since it uses less digits than its factorization.

55356945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527224.

The product of its digits is 405000, while the sum is 42.

The square root of 55356945 is about 7440.2247949911. The cubic root of 55356945 is about 381.1161665875.

The spelling of 55356945 in words is "fifty-five million, three hundred fifty-six thousand, nine hundred forty-five".