51113513623063 has 4 divisors (see below), whose sum is σ = 51115038113440. Its totient is φ = 51111989132688.

The previous prime is 51113513623043. The next prime is 51113513623093. The reversal of 51113513623063 is 36032631531115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51113513623063 - 2²⁵ = 51113480068631 is a prime.

It is a super-2 number, since 2×51113513623063² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51113513623043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762194895 + ... + 762261952.

It is an arithmetic number, because the mean of its divisors is an integer number (12778759528360).

Almost surely, 2^{51113513623063} is an apocalyptic number.

51113513623063 is a deficient number, since it is larger than the sum of its proper divisors (1524490377).

51113513623063 is a wasteful number, since it uses less digits than its factorization.

51113513623063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524490376.

The product of its (nonzero) digits is 145800, while the sum is 40.

The spelling of 51113513623063 in words is "fifty-one trillion, one hundred thirteen billion, five hundred thirteen million, six hundred twenty-three thousand, sixty-three".