55259907 has 16 divisors (see below), whose sum is σ = 76024320. Its totient is φ = 35677152.

The previous prime is 55259873. The next prime is 55259917. The reversal of 55259907 is 70995255.

It is not a de Polignac number, because 55259907 - 2⁸ = 55259651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55259917) 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, 25488 + ... + 27570.

It is an arithmetic number, because the mean of its divisors is an integer number (4751520).

Almost surely, 2^55259907 is an apocalyptic number.

55259907 is a deficient number, since it is larger than the sum of its proper divisors (20764413).

55259907 is a wasteful number, since it uses less digits than its factorization.

55259907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362.

The product of its (nonzero) digits is 141750, while the sum is 42.

The square root of 55259907 is about 7433.7007607248. The cubic root of 55259907 is about 380.8933437102.

The spelling of 55259907 in words is "fifty-five million, two hundred fifty-nine thousand, nine hundred seven".