51255245130 has 64 divisors (see below), whose sum is σ = 126146135808. Its totient is φ = 13320599040.

The previous prime is 51255245077. The next prime is 51255245143. The reversal of 51255245130 is 3154255215.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51255245091 and 51255245100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1167864 + ... + 1210956.

It is an arithmetic number, because the mean of its divisors is an integer number (1971033372).

Almost surely, 2^51255245130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51255245130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63073067904).

51255245130 is an abundant number, since it is smaller than the sum of its proper divisors (74890890678).

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

51255245130 is a wasteful number, since it uses less digits than its factorization.

51255245130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44111.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 51255245130 in words is "fifty-one billion, two hundred fifty-five million, two hundred forty-five thousand, one hundred thirty".