55077456 has 80 divisors (see below), whose sum is σ = 169703424. Its totient is φ = 15050112.

The previous prime is 55077431. The next prime is 55077511. The reversal of 55077456 is 65477055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4165 + ... + 11291.

Almost surely, 2^55077456 is an apocalyptic number.

55077456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55077456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84851712).

55077456 is an abundant number, since it is smaller than the sum of its proper divisors (114625968).

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

55077456 is a wasteful number, since it uses less digits than its factorization.

55077456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7168 (or 7162 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 55077456 is about 7421.4187322910. The cubic root of 55077456 is about 380.4736844506.

The spelling of 55077456 in words is "fifty-five million, seventy-seven thousand, four hundred fifty-six".