51274329 has 16 divisors (see below), whose sum is σ = 73265472. Its totient is φ = 31781888.

The previous prime is 51274253. The next prime is 51274381. The reversal of 51274329 is 92347215.

It is a cyclic number.

It is not a de Polignac number, because 51274329 - 2⁸ = 51274073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51274329.

It is not an unprimeable number, because it can be changed into a prime (51274129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1824 + ... + 10289.

It is an arithmetic number, because the mean of its divisors is an integer number (4579092).

Almost surely, 2^51274329 is an apocalyptic number.

It is an amenable number.

51274329 is a deficient number, since it is larger than the sum of its proper divisors (21991143).

51274329 is a wasteful number, since it uses less digits than its factorization.

51274329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12216.

The product of its digits is 15120, while the sum is 33.

The square root of 51274329 is about 7160.6095410936. The cubic root of 51274329 is about 371.5067097301.

The spelling of 51274329 in words is "fifty-one million, two hundred seventy-four thousand, three hundred twenty-nine".