51494073 has 12 divisors (see below), whose sum is σ = 70381104. Its totient is φ = 33488800.

The previous prime is 51494063. The next prime is 51494089. The reversal of 51494073 is 37049415.

It is not a de Polignac number, because 51494073 - 2¹⁰ = 51493049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51494063) 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, 63 + ... + 10148.

It is an arithmetic number, because the mean of its divisors is an integer number (5865092).

Almost surely, 2^51494073 is an apocalyptic number.

It is an amenable number.

51494073 is a deficient number, since it is larger than the sum of its proper divisors (18887031).

51494073 is a wasteful number, since it uses less digits than its factorization.

51494073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10296 (or 10255 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 51494073 is about 7175.9370816640. The cubic root of 51494073 is about 372.0366697000.

The spelling of 51494073 in words is "fifty-one million, four hundred ninety-four thousand, seventy-three".