51428367 has 12 divisors (see below), whose sum is σ = 74426040. Its totient is φ = 34220688.

The previous prime is 51428359. The next prime is 51428369. The reversal of 51428367 is 76382415.

51428367 is a `hidden beast` number, since 514 + 2 + 83 + 67 = 666.

It is not a de Polignac number, because 51428367 - 2³ = 51428359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51428369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117 + ... + 10142.

It is an arithmetic number, because the mean of its divisors is an integer number (6202170).

Almost surely, 2^51428367 is an apocalyptic number.

51428367 is a deficient number, since it is larger than the sum of its proper divisors (22997673).

51428367 is a wasteful number, since it uses less digits than its factorization.

51428367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822 (or 10819 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 51428367 is about 7171.3574028910. The cubic root of 51428367 is about 371.8783638045.

The spelling of 51428367 in words is "fifty-one million, four hundred twenty-eight thousand, three hundred sixty-seven".