51540100313 has 32 divisors (see below), whose sum is σ = 57336491520. Its totient is φ = 46030705920.

The previous prime is 51540100309. The next prime is 51540100361. The reversal of 51540100313 is 31300104515.

It is a cyclic number.

It is not a de Polignac number, because 51540100313 - 2² = 51540100309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51540100303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53078918 + ... + 53079888.

It is an arithmetic number, because the mean of its divisors is an integer number (1791765360).

Almost surely, 2^51540100313 is an apocalyptic number.

It is an amenable number.

51540100313 is a deficient number, since it is larger than the sum of its proper divisors (5796391207).

51540100313 is a wasteful number, since it uses less digits than its factorization.

51540100313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 51540100313 its reverse (31300104515), we get a palindrome (82840204828).

The spelling of 51540100313 in words is "fifty-one billion, five hundred forty million, one hundred thousand, three hundred thirteen".