55387452 has 24 divisors (see below), whose sum is σ = 133407232. Its totient is φ = 17866800.

The previous prime is 55387447. The next prime is 55387457. The reversal of 55387452 is 25478355.

55387452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55387447) and next prime (55387457).

It is a self number, because there is not a number n which added to its sum of digits gives 55387452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55387457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74074 + ... + 74817.

Almost surely, 2^55387452 is an apocalyptic number.

It is an amenable number.

55387452 is an abundant number, since it is smaller than the sum of its proper divisors (78019780).

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

55387452 is a wasteful number, since it uses less digits than its factorization.

55387452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148929 (or 148927 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The square root of 55387452 is about 7442.2746522821. The cubic root of 55387452 is about 381.1861642830.

The spelling of 55387452 in words is "fifty-five million, three hundred eighty-seven thousand, four hundred fifty-two".