55255732 has 36 divisors (see below), whose sum is σ = 113290464. Its totient is φ = 23511600.

The previous prime is 55255721. The next prime is 55255747. The reversal of 55255732 is 23755255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28663 + ... + 30529.

Almost surely, 2^55255732 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 55255732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56645232).

55255732 is an abundant number, since it is smaller than the sum of its proper divisors (58034732).

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

55255732 is a wasteful number, since it uses less digits than its factorization.

55255732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036 (or 2027 counting only the distinct ones).

The product of its digits is 52500, while the sum is 34.

The square root of 55255732 is about 7433.4199397047. The cubic root of 55255732 is about 380.8837510426.

The spelling of 55255732 in words is "fifty-five million, two hundred fifty-five thousand, seven hundred thirty-two".