55240152 has 64 divisors (see below), whose sum is σ = 152530560. Its totient is φ = 16531200.

The previous prime is 55240147. The next prime is 55240153. The reversal of 55240152 is 25104255.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55240153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20652 + ... + 23172.

It is an arithmetic number, because the mean of its divisors is an integer number (2383290).

Almost surely, 2^55240152 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 55240152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76265280).

55240152 is an abundant number, since it is smaller than the sum of its proper divisors (97290408).

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

55240152 is a wasteful number, since it uses less digits than its factorization.

55240152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624 (or 2620 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55240152 is about 7432.3718959697. The cubic root of 55240152 is about 380.8479494678.

It can be divided in two parts, 552 and 40152, that added together give a palindrome (40704).

The spelling of 55240152 in words is "fifty-five million, two hundred forty thousand, one hundred fifty-two".