51167091 has 8 divisors (see below), whose sum is σ = 68373904. Its totient is φ = 34035840.

The previous prime is 51167063. The next prime is 51167113. The reversal of 51167091 is 19076115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51167091 - 2⁹ = 51166579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51167891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17290 + ... + 20031.

It is an arithmetic number, because the mean of its divisors is an integer number (8546738).

Almost surely, 2^51167091 is an apocalyptic number.

51167091 is a deficient number, since it is larger than the sum of its proper divisors (17206813).

51167091 is a wasteful number, since it uses less digits than its factorization.

51167091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37781.

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 51167091 is about 7153.1175720800. The cubic root of 51167091 is about 371.2475323216.

The spelling of 51167091 in words is "fifty-one million, one hundred sixty-seven thousand, ninety-one".