55099332 has 24 divisors (see below), whose sum is σ = 142850400. Its totient is φ = 18366408.

The previous prime is 55099321. The next prime is 55099339. The reversal of 55099332 is 23399055.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (55099339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254982 + ... + 255197.

It is an arithmetic number, because the mean of its divisors is an integer number (5952100).

Almost surely, 2^55099332 is an apocalyptic number.

It is an amenable number.

55099332 is an abundant number, since it is smaller than the sum of its proper divisors (87751068).

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

55099332 is a wasteful number, since it uses less digits than its factorization.

55099332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510192 (or 510184 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 36.

The square root of 55099332 is about 7422.8924281576. The cubic root of 55099332 is about 380.5240507360.

It can be divided in two parts, 5509 and 9332, that added together give a palindrome (14841).

The spelling of 55099332 in words is "fifty-five million, ninety-nine thousand, three hundred thirty-two".