51625580259 has 16 divisors (see below), whose sum is σ = 75835240704. Its totient is φ = 30978444000.

The previous prime is 51625580249. The next prime is 51625580287. The reversal of 51625580259 is 95208552615.

It is not a de Polignac number, because 51625580259 - 2⁴ = 51625580243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51625580239) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7741279 + ... + 7747944.

It is an arithmetic number, because the mean of its divisors is an integer number (4739702544).

Almost surely, 2^51625580259 is an apocalyptic number.

51625580259 is a deficient number, since it is larger than the sum of its proper divisors (24209660445).

51625580259 is a wasteful number, since it uses less digits than its factorization.

51625580259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15489338.

The product of its (nonzero) digits is 1080000, while the sum is 48.

The spelling of 51625580259 in words is "fifty-one billion, six hundred twenty-five million, five hundred eighty thousand, two hundred fifty-nine".