55436870 has 32 divisors (see below), whose sum is σ = 105511680. Its totient is φ = 20913120.

The previous prime is 55436869. The next prime is 55436891. The reversal of 55436870 is 7863455.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53255 + ... + 54285.

It is an arithmetic number, because the mean of its divisors is an integer number (3297240).

Almost surely, 2^55436870 is an apocalyptic number.

55436870 is a deficient number, since it is larger than the sum of its proper divisors (50074810).

55436870 is a wasteful number, since it uses less digits than its factorization.

55436870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 55436870 is about 7445.5939991380. The cubic root of 55436870 is about 381.2994983659.

The spelling of 55436870 in words is "fifty-five million, four hundred thirty-six thousand, eight hundred seventy".