51790142 has 8 divisors (see below), whose sum is σ = 78749616. Its totient is φ = 25540272.

The previous prime is 51790049. The next prime is 51790163. The reversal of 51790142 is 24109715.

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, 177218 + ... + 177509.

It is an arithmetic number, because the mean of its divisors is an integer number (9843702).

Almost surely, 2^51790142 is an apocalyptic number.

51790142 is a deficient number, since it is larger than the sum of its proper divisors (26959474).

51790142 is a wasteful number, since it uses less digits than its factorization.

51790142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354802.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 51790142 is about 7196.5368059922. The cubic root of 51790142 is about 372.7483250273.

Adding to 51790142 its reverse (24109715), we get a palindrome (75899857).

The spelling of 51790142 in words is "fifty-one million, seven hundred ninety thousand, one hundred forty-two".