55774448 has 20 divisors (see below), whose sum is σ = 112762128. Its totient is φ = 26674560.

The previous prime is 55774441. The next prime is 55774457. The reversal of 55774448 is 84447755.

It is a super-2 number, since 2×55774448² = 6221578099409408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55774399 and 55774408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55774441) 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, 75413 + ... + 76148.

Almost surely, 2^55774448 is an apocalyptic number.

It is an amenable number.

55774448 is an abundant number, since it is smaller than the sum of its proper divisors (56987680).

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

55774448 is a wasteful number, since it uses less digits than its factorization.

55774448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151592 (or 151586 counting only the distinct ones).

The product of its digits is 627200, while the sum is 44.

The square root of 55774448 is about 7468.2292412593. The cubic root of 55774448 is about 382.0718960461.

The spelling of 55774448 in words is "fifty-five million, seven hundred seventy-four thousand, four hundred forty-eight".