55450252 has 36 divisors (see below), whose sum is σ = 114644376. Its totient is φ = 23262720.

The previous prime is 55450249. The next prime is 55450259. The reversal of 55450252 is 25205455.

It is a self number, because there is not a number n which added to its sum of digits gives 55450252.

It is not an unprimeable number, because it can be changed into a prime (55450259) 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, 3708 + ... + 11164.

It is an arithmetic number, because the mean of its divisors is an integer number (3184566).

Almost surely, 2^55450252 is an apocalyptic number.

55450252 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55450252 is an abundant number, since it is smaller than the sum of its proper divisors (59194124).

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

55450252 is a wasteful number, since it uses less digits than its factorization.

55450252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7498 (or 7483 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 55450252 is about 7446.4925971896. The cubic root of 55450252 is about 381.3301767415.

The spelling of 55450252 in words is "fifty-five million, four hundred fifty thousand, two hundred fifty-two".