55761552 has 240 divisors, whose sum is σ = 200558592. Its totient is φ = 14042880.

The previous prime is 55761551. The next prime is 55761557. The reversal of 55761552 is 25516755.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55761551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 521083 + ... + 521189.

Almost surely, 2^55761552 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 55761552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100279296).

55761552 is an abundant number, since it is smaller than the sum of its proper divisors (144797040).

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

55761552 is a wasteful number, since it uses less digits than its factorization.

55761552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 177 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 55761552 is about 7467.3658006020. The cubic root of 55761552 is about 382.0424466050.

The spelling of 55761552 in words is "fifty-five million, seven hundred sixty-one thousand, five hundred fifty-two".