55325144 has 32 divisors (see below), whose sum is σ = 119992320. Its totient is φ = 23423136.

The previous prime is 55325119. The next prime is 55325147. The reversal of 55325144 is 44152355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55325147) 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, 1304 + ... + 10599.

It is an arithmetic number, because the mean of its divisors is an integer number (3749760).

Almost surely, 2^55325144 is an apocalyptic number.

It is an amenable number.

55325144 is an abundant number, since it is smaller than the sum of its proper divisors (64667176).

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

55325144 is a wasteful number, since it uses less digits than its factorization.

55325144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11999 (or 11995 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 55325144 is about 7438.0873885697. The cubic root of 55325144 is about 381.0431724534.

Adding to 55325144 its reverse (44152355), we get a palindrome (99477499).

The spelling of 55325144 in words is "fifty-five million, three hundred twenty-five thousand, one hundred forty-four".