51333495213 has 32 divisors (see below), whose sum is σ = 91897731072. Its totient is φ = 24615460800.

The previous prime is 51333495209. The next prime is 51333495217. The reversal of 51333495213 is 31259433315.

It is an interprime number because it is at equal distance from previous prime (51333495209) and next prime (51333495217).

It is not a de Polignac number, because 51333495213 - 2² = 51333495209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51333495217) 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, 8544033 + ... + 8550038.

It is an arithmetic number, because the mean of its divisors is an integer number (2871804096).

Almost surely, 2^51333495213 is an apocalyptic number.

It is an amenable number.

51333495213 is a deficient number, since it is larger than the sum of its proper divisors (40564235859).

51333495213 is a wasteful number, since it uses less digits than its factorization.

51333495213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17094105.

The product of its digits is 145800, while the sum is 39.

The spelling of 51333495213 in words is "fifty-one billion, three hundred thirty-three million, four hundred ninety-five thousand, two hundred thirteen".