51120010260 has 72 divisors (see below), whose sum is σ = 169160767776. Its totient is φ = 12392729280.

The previous prime is 51120010247. The next prime is 51120010273. The reversal of 51120010260 is 6201002115.

It is an interprime number because it is at equal distance from previous prime (51120010247) and next prime (51120010273).

It is a super-2 number, since 2×51120010260² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12907114 + ... + 12911073.

It is an arithmetic number, because the mean of its divisors is an integer number (2349455108).

Almost surely, 2^51120010260 is an apocalyptic number.

It is an amenable number.

51120010260 is an abundant number, since it is smaller than the sum of its proper divisors (118040757516).

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

51120010260 is a wasteful number, since it uses less digits than its factorization.

51120010260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25818213 (or 25818208 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 51120010260 its reverse (6201002115), we get a palindrome (57321012375).

The spelling of 51120010260 in words is "fifty-one billion, one hundred twenty million, ten thousand, two hundred sixty".