51774345 has 24 divisors (see below), whose sum is σ = 102563136. Its totient is φ = 23668128.

The previous prime is 51774341. The next prime is 51774353. The reversal of 51774345 is 54347715.

It is a happy number.

It is not a de Polignac number, because 51774345 - 2² = 51774341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51774341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81867 + ... + 82496.

It is an arithmetic number, because the mean of its divisors is an integer number (4273464).

Almost surely, 2^51774345 is an apocalyptic number.

It is an amenable number.

51774345 is a deficient number, since it is larger than the sum of its proper divisors (50788791).

51774345 is a wasteful number, since it uses less digits than its factorization.

51774345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164381 (or 164378 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 51774345 is about 7195.4391804809. The cubic root of 51774345 is about 372.7104226785.

The spelling of 51774345 in words is "fifty-one million, seven hundred seventy-four thousand, three hundred forty-five".