51150052600 has 24 divisors (see below), whose sum is σ = 118923872760. Its totient is φ = 20460020960.

The previous prime is 51150052573. The next prime is 51150052631. The reversal of 51150052600 is 625005115.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127874932 + ... + 127875331.

It is an arithmetic number, because the mean of its divisors is an integer number (4955161365).

Almost surely, 2^51150052600 is an apocalyptic number.

51150052600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51150052600 is an abundant number, since it is smaller than the sum of its proper divisors (67773820160).

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

51150052600 is a wasteful number, since it uses less digits than its factorization.

51150052600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255750279 (or 255750270 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 51150052600 its reverse (625005115), we get a palindrome (51775057715).

The spelling of 51150052600 in words is "fifty-one billion, one hundred fifty million, fifty-two thousand, six hundred".