51541802280 has 64 divisors (see below), whose sum is σ = 171806011200. Its totient is φ = 13744480320.

The previous prime is 51541802261. The next prime is 51541802281. The reversal of 51541802280 is 8220814515.

51541802280 is a `hidden beast` number, since 5 + 15 + 418 + 0 + 228 + 0 = 666.

It is a super-2 number, since 2×51541802280² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (51541802281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23860866 + ... + 23863025.

It is an arithmetic number, because the mean of its divisors is an integer number (2684468925).

Almost surely, 2^51541802280 is an apocalyptic number.

It is an amenable number.

51541802280 is an abundant number, since it is smaller than the sum of its proper divisors (120264208920).

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

51541802280 is a wasteful number, since it uses less digits than its factorization.

51541802280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47723911 (or 47723901 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The spelling of 51541802280 in words is "fifty-one billion, five hundred forty-one million, eight hundred two thousand, two hundred eighty".