55081752 has 64 divisors (see below), whose sum is σ = 154310400. Its totient is φ = 16237440.

The previous prime is 55081709. The next prime is 55081783. The reversal of 55081752 is 25718055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 6949 + ... + 12587.

It is an arithmetic number, because the mean of its divisors is an integer number (2411100).

Almost surely, 2^55081752 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 55081752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77155200).

55081752 is an abundant number, since it is smaller than the sum of its proper divisors (99228648).

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

55081752 is a wasteful number, since it uses less digits than its factorization.

55081752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696 (or 5692 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 55081752 is about 7421.7081591774. The cubic root of 55081752 is about 380.4835764135.

It can be divided in two parts, 5508 and 1752, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 55081752 in words is "fifty-five million, eighty-one thousand, seven hundred fifty-two".