55470144 has 28 divisors (see below), whose sum is σ = 146765264. Its totient is φ = 18489984.

The previous prime is 55470137. The next prime is 55470161. The reversal of 55470144 is 44107455.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144262 + ... + 144645.

Almost surely, 2^55470144 is an apocalyptic number.

It is an amenable number.

55470144 is an abundant number, since it is smaller than the sum of its proper divisors (91295120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55470144 is a wasteful number, since it uses less digits than its factorization.

55470144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288922 (or 288912 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 55470144 is about 7447.8281398002. The cubic root of 55470144 is about 381.3757702404.

Adding to 55470144 its reverse (44107455), we get a palindrome (99577599).

The spelling of 55470144 in words is "fifty-five million, four hundred seventy thousand, one hundred forty-four".