55630325 has 12 divisors (see below), whose sum is σ = 69096768. Its totient is φ = 44430000.

The previous prime is 55630321. The next prime is 55630327. The reversal of 55630325 is 52303655.

It is a happy number.

It is not a de Polignac number, because 55630325 - 2² = 55630321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55630321) 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, 17294 + ... + 20256.

It is an arithmetic number, because the mean of its divisors is an integer number (5758064).

Almost surely, 2^55630325 is an apocalyptic number.

It is an amenable number.

55630325 is a deficient number, since it is larger than the sum of its proper divisors (13466443).

55630325 is a wasteful number, since it uses less digits than its factorization.

55630325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724 (or 3719 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 55630325 is about 7458.5739253560. The cubic root of 55630325 is about 381.7425167439.

It can be divided in two parts, 55630 and 325, that added together give a palindrome (55955).

The spelling of 55630325 in words is "fifty-five million, six hundred thirty thousand, three hundred twenty-five".