51094905 has 16 divisors (see below), whose sum is σ = 82171584. Its totient is φ = 27110720.

The previous prime is 51094889. The next prime is 51094907. The reversal of 51094905 is 50949015.

It is not a de Polignac number, because 51094905 - 2⁴ = 51094889 is a prime.

It is a super-2 number, since 2×51094905² = 5221378633918050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51094907) 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, 5691 + ... + 11600.

It is an arithmetic number, because the mean of its divisors is an integer number (5135724).

Almost surely, 2^51094905 is an apocalyptic number.

It is an amenable number.

51094905 is a deficient number, since it is larger than the sum of its proper divisors (31076679).

51094905 is a wasteful number, since it uses less digits than its factorization.

51094905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17496.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 51094905 is about 7148.0700192430. The cubic root of 51094905 is about 371.0728661038.

The spelling of 51094905 in words is "fifty-one million, ninety-four thousand, nine hundred five".