51375667 has 12 divisors (see below), whose sum is σ = 60659400. Its totient is φ = 43376256.

The previous prime is 51375661. The next prime is 51375689. The reversal of 51375667 is 76657315.

It is a happy number.

It is not a de Polignac number, because 51375667 - 2³ = 51375659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51375661) 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, 4542 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (5054950).

Almost surely, 2^51375667 is an apocalyptic number.

51375667 is a deficient number, since it is larger than the sum of its proper divisors (9283733).

51375667 is a wasteful number, since it uses less digits than its factorization.

51375667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15730 (or 15723 counting only the distinct ones).

The product of its digits is 132300, while the sum is 40.

The square root of 51375667 is about 7167.6821218578. The cubic root of 51375667 is about 371.7512958786.

The spelling of 51375667 in words is "fifty-one million, three hundred seventy-five thousand, six hundred sixty-seven".