51130600 has 24 divisors (see below), whose sum is σ = 118879110. Its totient is φ = 20452160.

The previous prime is 51130591. The next prime is 51130609. The reversal of 51130600 is 603115.

It is an interprime number because it is at equal distance from previous prime (51130591) and next prime (51130609).

It can be written as a sum of positive squares in 3 ways, for example, as 19027044 + 32103556 = 4362^2 + 5666^2 .

It is a super-2 number, since 2×51130600² = 5228676512720000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51130609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127627 + ... + 128026.

Almost surely, 2^51130600 is an apocalyptic number.

51130600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51130600 is an abundant number, since it is smaller than the sum of its proper divisors (67748510).

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

51130600 is a wasteful number, since it uses less digits than its factorization.

51130600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255669 (or 255660 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 51130600 is about 7150.5664111314. The cubic root of 51130600 is about 371.1592567313.

Adding to 51130600 its reverse (603115), we get a palindrome (51733715).

The spelling of 51130600 in words is "fifty-one million, one hundred thirty thousand, six hundred".