51371667 has 6 divisors (see below), whose sum is σ = 74203532. Its totient is φ = 34247772.

The previous prime is 51371659. The next prime is 51371669. The reversal of 51371667 is 76617315.

It is not a de Polignac number, because 51371667 - 2³ = 51371659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51371669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2853973 + ... + 2853990.

Almost surely, 2^51371667 is an apocalyptic number.

51371667 is a deficient number, since it is larger than the sum of its proper divisors (22831865).

51371667 is a wasteful number, since it uses less digits than its factorization.

51371667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5707969 (or 5707966 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 51371667 is about 7167.4030861952. The cubic root of 51371667 is about 371.7416477069.

The spelling of 51371667 in words is "fifty-one million, three hundred seventy-one thousand, six hundred sixty-seven".