55488448 has 14 divisors (see below), whose sum is σ = 110110016. Its totient is φ = 27744192.

The previous prime is 55488439. The next prime is 55488449. The reversal of 55488448 is 84488455.

It is a super-2 number, since 2×55488448² = 6157935722897408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55488398 and 55488407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55488449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433440 + ... + 433567.

Almost surely, 2^55488448 is an apocalyptic number.

It is an amenable number.

55488448 is a deficient number, since it is larger than the sum of its proper divisors (54621568).

55488448 is an equidigital number, since it uses as much as digits as its factorization.

55488448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867019 (or 867009 counting only the distinct ones).

The product of its digits is 819200, while the sum is 46.

The square root of 55488448 is about 7449.0568530519. The cubic root of 55488448 is about 381.4177143320.

The spelling of 55488448 in words is "fifty-five million, four hundred eighty-eight thousand, four hundred forty-eight".