51373169 has 8 divisors (see below), whose sum is σ = 55822080. Its totient is φ = 47098800.

The previous prime is 51373139. The next prime is 51373177. The reversal of 51373169 is 96137315.

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

It is a cyclic number.

It is not a de Polignac number, because 51373169 - 2⁸ = 51372913 is a prime.

It is a super-2 number, since 2×51373169² = 5278404986205122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51373139) 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, 43022 + ... + 44199.

It is an arithmetic number, because the mean of its divisors is an integer number (6977760).

Almost surely, 2^51373169 is an apocalyptic number.

It is an amenable number.

51373169 is a deficient number, since it is larger than the sum of its proper divisors (4448911).

51373169 is a wasteful number, since it uses less digits than its factorization.

51373169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87271.

The product of its digits is 17010, while the sum is 35.

The square root of 51373169 is about 7167.5078653602. The cubic root of 51373169 is about 371.7452706541.

The spelling of 51373169 in words is "fifty-one million, three hundred seventy-three thousand, one hundred sixty-nine".