51188325 has 12 divisors (see below), whose sum is σ = 84631488. Its totient is φ = 27300400.

The previous prime is 51188321. The next prime is 51188327. The reversal of 51188325 is 52388115.

It is a happy number.

It is not a de Polignac number, because 51188325 - 2² = 51188321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51188321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341181 + ... + 341330.

It is an arithmetic number, because the mean of its divisors is an integer number (7052624).

Almost surely, 2^51188325 is an apocalyptic number.

It is an amenable number.

51188325 is a deficient number, since it is larger than the sum of its proper divisors (33443163).

51188325 is a wasteful number, since it uses less digits than its factorization.

51188325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682524 (or 682519 counting only the distinct ones).

The product of its digits is 9600, while the sum is 33.

The square root of 51188325 is about 7154.6016660608. The cubic root of 51188325 is about 371.2988802989.

The spelling of 51188325 in words is "fifty-one million, one hundred eighty-eight thousand, three hundred twenty-five".