55136448 has 42 divisors (see below), whose sum is σ = 158040324. Its totient is φ = 18378624.

The previous prime is 55136443. The next prime is 55136467. The reversal of 55136448 is 84463155.

It is a happy number.

55136448 is a `hidden beast` number, since 5 + 5 + 1 + 3 + 644 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55136443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47286 + ... + 48437.

Almost surely, 2^55136448 is an apocalyptic number.

It is an amenable number.

55136448 is an abundant number, since it is smaller than the sum of its proper divisors (102903876).

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

55136448 is a wasteful number, since it uses less digits than its factorization.

55136448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95741 (or 95728 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 55136448 is about 7425.3921108585. The cubic root of 55136448 is about 380.6094744005.

It can be divided in two parts, 55 and 136448, that added together give a triangular number (136503 = T₅₂₂).

The spelling of 55136448 in words is "fifty-five million, one hundred thirty-six thousand, four hundred forty-eight".