51013742 has 16 divisors (see below), whose sum is σ = 82745712. Its totient is φ = 23448000.

The previous prime is 51013723. The next prime is 51013759. The reversal of 51013742 is 24731015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2618 + ... + 10434.

It is an arithmetic number, because the mean of its divisors is an integer number (5171607).

Almost surely, 2^51013742 is an apocalyptic number.

51013742 is a deficient number, since it is larger than the sum of its proper divisors (31731970).

51013742 is a wasteful number, since it uses less digits than its factorization.

51013742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8083.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 51013742 is about 7142.3904961854. The cubic root of 51013742 is about 370.8762819367.

Adding to 51013742 its reverse (24731015), we get a palindrome (75744757).

The spelling of 51013742 in words is "fifty-one million, thirteen thousand, seven hundred forty-two".