51512342 has 8 divisors (see below), whose sum is σ = 88306896. Its totient is φ = 22076712.

The previous prime is 51512333. The next prime is 51512353. The reversal of 51512342 is 24321515.

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

It is a congruent number.

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, 1839713 + ... + 1839740.

It is an arithmetic number, because the mean of its divisors is an integer number (11038362).

Almost surely, 2^51512342 is an apocalyptic number.

51512342 is a deficient number, since it is larger than the sum of its proper divisors (36794554).

51512342 is a wasteful number, since it uses less digits than its factorization.

51512342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679462.

The product of its digits is 1200, while the sum is 23.

The square root of 51512342 is about 7177.2099035767. The cubic root of 51512342 is about 372.0806613927.

Adding to 51512342 its reverse (24321515), we get a palindrome (75833857).

The spelling of 51512342 in words is "fifty-one million, five hundred twelve thousand, three hundred forty-two".