51925787907 has 8 divisors (see below), whose sum is σ = 79125010176. Its totient is φ = 29671878792.

The previous prime is 51925787863. The next prime is 51925787923. The reversal of 51925787907 is 70978752915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51925787907 - 2¹⁰ = 51925786883 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (51925785907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236328263 + ... + 1236328304.

It is an arithmetic number, because the mean of its divisors is an integer number (9890626272).

Almost surely, 2^51925787907 is an apocalyptic number.

51925787907 is a deficient number, since it is larger than the sum of its proper divisors (27199222269).

51925787907 is a wasteful number, since it uses less digits than its factorization.

51925787907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472656577.

The product of its (nonzero) digits is 11113200, while the sum is 60.

The spelling of 51925787907 in words is "fifty-one billion, nine hundred twenty-five million, seven hundred eighty-seven thousand, nine hundred seven".