51172094 has 4 divisors (see below), whose sum is σ = 76758144. Its totient is φ = 25586046.

The previous prime is 51172087. The next prime is 51172097. The reversal of 51172094 is 49027115.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51172097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12793022 + ... + 12793025.

It is an arithmetic number, because the mean of its divisors is an integer number (19189536).

Almost surely, 2^51172094 is an apocalyptic number.

51172094 is a deficient number, since it is larger than the sum of its proper divisors (25586050).

51172094 is a wasteful number, since it uses less digits than its factorization.

51172094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25586049.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 51172094 is about 7153.4672711909. The cubic root of 51172094 is about 371.2596318360.

The spelling of 51172094 in words is "fifty-one million, one hundred seventy-two thousand, ninety-four".