55458436 has 12 divisors (see below), whose sum is σ = 105875280. Its totient is φ = 25208360.

The previous prime is 55458419. The next prime is 55458439. The reversal of 55458436 is 63485455.

It is not an unprimeable number, because it can be changed into a prime (55458439) 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, 630166 + ... + 630253.

It is an arithmetic number, because the mean of its divisors is an integer number (8822940).

Almost surely, 2^55458436 is an apocalyptic number.

It is an amenable number.

55458436 is a deficient number, since it is larger than the sum of its proper divisors (50416844).

55458436 is a wasteful number, since it uses less digits than its factorization.

55458436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260434 (or 1260432 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The square root of 55458436 is about 7447.0420973699. The cubic root of 55458436 is about 381.3489362153.

The spelling of 55458436 in words is "fifty-five million, four hundred fifty-eight thousand, four hundred thirty-six".