51113023 has 8 divisors (see below), whose sum is σ = 55365408. Its totient is φ = 46906464.

The previous prime is 51113011. The next prime is 51113053. The reversal of 51113023 is 32031115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51113023 is a prime.

It is a super-2 number, since 2×51113023² = 5225082240397058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51112988 and 51113006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51113003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9115 + ... + 13612.

It is an arithmetic number, because the mean of its divisors is an integer number (6920676).

Almost surely, 2^51113023 is an apocalyptic number.

51113023 is a deficient number, since it is larger than the sum of its proper divisors (4252385).

51113023 is a wasteful number, since it uses less digits than its factorization.

51113023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22913.

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

The square root of 51113023 is about 7149.3372420106. The cubic root of 51113023 is about 371.1167211202.

Adding to 51113023 its reverse (32031115), we get a palindrome (83144138).

The spelling of 51113023 in words is "fifty-one million, one hundred thirteen thousand, twenty-three".