55761056 has 48 divisors (see below), whose sum is σ = 118879488. Its totient is φ = 25593600.

The previous prime is 55761053. The next prime is 55761059. The reversal of 55761056 is 65016755.

It is an interprime number because it is at equal distance from previous prime (55761053) and next prime (55761059).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55761053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129161 + ... + 129591.

It is an arithmetic number, because the mean of its divisors is an integer number (2476656).

Almost surely, 2^55761056 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 55761056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59439744).

55761056 is an abundant number, since it is smaller than the sum of its proper divisors (63118432).

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

55761056 is a wasteful number, since it uses less digits than its factorization.

55761056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 55761056 is about 7467.3325893521. The cubic root of 55761056 is about 382.0413138435.

The spelling of 55761056 in words is "fifty-five million, seven hundred sixty-one thousand, fifty-six".