51257225562 has 8 divisors (see below), whose sum is σ = 102514451136. Its totient is φ = 17085741852.

The previous prime is 51257225531. The next prime is 51257225563. The reversal of 51257225562 is 26552275215.

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

51257225562 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (51257225563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4271435458 + ... + 4271435469.

It is an arithmetic number, because the mean of its divisors is an integer number (12814306392).

Almost surely, 2^51257225562 is an apocalyptic number.

51257225562 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51257225562 is a wasteful number, since it uses less digits than its factorization.

51257225562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8542870932.

The product of its digits is 420000, while the sum is 42.

The spelling of 51257225562 in words is "fifty-one billion, two hundred fifty-seven million, two hundred twenty-five thousand, five hundred sixty-two".