51904327225 has 12 divisors (see below), whose sum is σ = 64521880380. Its totient is φ = 41419904000.

The previous prime is 51904327207. The next prime is 51904327231. The reversal of 51904327225 is 52272340915.

It can be written as a sum of positive squares in 6 ways, for example, as 1837579689 + 50066747536 = 42867^2 + 223756^2 .

It is not a de Polignac number, because 51904327225 - 2¹⁵ = 51904294457 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2578720 + ... + 2598769.

It is an arithmetic number, because the mean of its divisors is an integer number (5376823365).

Almost surely, 2^51904327225 is an apocalyptic number.

It is an amenable number.

51904327225 is a deficient number, since it is larger than the sum of its proper divisors (12617553155).

51904327225 is a wasteful number, since it uses less digits than its factorization.

51904327225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177900 (or 5177895 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 51904327225 in words is "fifty-one billion, nine hundred four million, three hundred twenty-seven thousand, two hundred twenty-five".