56449776 has 80 divisors (see below), whose sum is σ = 152668800. Its totient is φ = 17950464.

The previous prime is 56449769. The next prime is 56449781. The reversal of 56449776 is 67794465.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 148755 + ... + 149133.

It is an arithmetic number, because the mean of its divisors is an integer number (1908360).

Almost surely, 2^56449776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56449776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76334400).

56449776 is an abundant number, since it is smaller than the sum of its proper divisors (96219024).

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

56449776 is a wasteful number, since it uses less digits than its factorization.

56449776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 520 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 56449776 is about 7513.3065956342. The cubic root of 56449776 is about 383.6077809460.

The spelling of 56449776 in words is "fifty-six million, four hundred forty-nine thousand, seven hundred seventy-six".