55111248 has 60 divisors (see below), whose sum is σ = 162360640. Its totient is φ = 17402688.

The previous prime is 55111247. The next prime is 55111261. The reversal of 55111248 is 84211155.

It is a super-2 number, since 2×55111248² = 6074499312235008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55111247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7336 + ... + 12807.

Almost surely, 2^55111248 is an apocalyptic number.

It is an amenable number.

55111248 is an abundant number, since it is smaller than the sum of its proper divisors (107249392).

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

55111248 is a wasteful number, since it uses less digits than its factorization.

55111248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20176 (or 20167 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 55111248 is about 7423.6950368398. The cubic root of 55111248 is about 380.5514799721.

The spelling of 55111248 in words is "fifty-five million, one hundred eleven thousand, two hundred forty-eight".