51140044 has 6 divisors (see below), whose sum is σ = 89495084. Its totient is φ = 25570020.

The previous prime is 51140009. The next prime is 51140069. The reversal of 51140044 is 44004115.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6392502 + ... + 6392509.

Almost surely, 2^51140044 is an apocalyptic number.

It is an amenable number.

51140044 is a deficient number, since it is larger than the sum of its proper divisors (38355040).

51140044 is a wasteful number, since it uses less digits than its factorization.

51140044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12785015 (or 12785013 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 51140044 is about 7151.2267479084. The cubic root of 51140044 is about 371.1821067939.

Adding to 51140044 its reverse (44004115), we get a palindrome (95144159).

The spelling of 51140044 in words is "fifty-one million, one hundred forty thousand, forty-four".