55144325 has 12 divisors (see below), whose sum is σ = 68516448. Its totient is φ = 44026800.

The previous prime is 55144307. The next prime is 55144337. The reversal of 55144325 is 52344155.

It is not a de Polignac number, because 55144325 - 2⁸ = 55144069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12344 + ... + 16206.

It is an arithmetic number, because the mean of its divisors is an integer number (5709704).

Almost surely, 2^55144325 is an apocalyptic number.

It is an amenable number.

55144325 is a deficient number, since it is larger than the sum of its proper divisors (13372123).

55144325 is a wasteful number, since it uses less digits than its factorization.

55144325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444 (or 4439 counting only the distinct ones).

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

The square root of 55144325 is about 7425.9225016155. The cubic root of 55144325 is about 380.6275986370.

The spelling of 55144325 in words is "fifty-five million, one hundred forty-four thousand, three hundred twenty-five".