55155132 has 36 divisors (see below), whose sum is σ = 139948536. Its totient is φ = 18315360.

The previous prime is 55155131. The next prime is 55155151. The reversal of 55155132 is 23155155.

It is a tau number, because it is divible by the number of its divisors (36).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 55155096 and 55155105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55155131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7207 + ... + 12737.

Almost surely, 2^55155132 is an apocalyptic number.

It is an amenable number.

55155132 is an abundant number, since it is smaller than the sum of its proper divisors (84793404).

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

55155132 is a wasteful number, since it uses less digits than its factorization.

55155132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5818 (or 5813 counting only the distinct ones).

The product of its digits is 3750, while the sum is 27.

The square root of 55155132 is about 7426.6501196704. The cubic root of 55155132 is about 380.6524617199.

The spelling of 55155132 in words is "fifty-five million, one hundred fifty-five thousand, one hundred thirty-two".