51145594 has 8 divisors (see below), whose sum is σ = 76860288. Its totient is φ = 25525500.

The previous prime is 51145561. The next prime is 51145603. The reversal of 51145594 is 49554115.

It is a happy number.

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

It is a super-2 number, since 2×51145594² = 5231743571225672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22282 + ... + 24469.

It is an arithmetic number, because the mean of its divisors is an integer number (9607536).

Almost surely, 2^51145594 is an apocalyptic number.

51145594 is a deficient number, since it is larger than the sum of its proper divisors (25714694).

51145594 is a wasteful number, since it uses less digits than its factorization.

51145594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47300.

The product of its digits is 18000, while the sum is 34.

The square root of 51145594 is about 7151.6147826907. The cubic root of 51145594 is about 371.1955338856.

The spelling of 51145594 in words is "fifty-one million, one hundred forty-five thousand, five hundred ninety-four".