51198164025 has 12 divisors (see below), whose sum is σ = 84647631312. Its totient is φ = 27305687440.

The previous prime is 51198164023. The next prime is 51198164107. The reversal of 51198164025 is 52046189115.

It is not a de Polignac number, because 51198164025 - 2¹ = 51198164023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51198164023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341321019 + ... + 341321168.

It is an arithmetic number, because the mean of its divisors is an integer number (7053969276).

Almost surely, 2^51198164025 is an apocalyptic number.

It is an amenable number.

51198164025 is a deficient number, since it is larger than the sum of its proper divisors (33449467287).

51198164025 is a wasteful number, since it uses less digits than its factorization.

51198164025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682642200 (or 682642195 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 51198164025 in words is "fifty-one billion, one hundred ninety-eight million, one hundred sixty-four thousand, twenty-five".