51789142 has 8 divisors (see below), whose sum is σ = 78026616. Its totient is φ = 25780272.

The previous prime is 51789103. The next prime is 51789181. The reversal of 51789142 is 24198715.

It is an interprime number because it is at equal distance from previous prime (51789103) and next prime (51789181).

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

It is a super-3 number, since 3×51789142³ (a number of 24 digits) contains 333 as substring.

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, 56583 + ... + 57490.

It is an arithmetic number, because the mean of its divisors is an integer number (9753327).

Almost surely, 2^51789142 is an apocalyptic number.

51789142 is a deficient number, since it is larger than the sum of its proper divisors (26237474).

51789142 is a wasteful number, since it uses less digits than its factorization.

51789142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114302.

The product of its digits is 20160, while the sum is 37.

The square root of 51789142 is about 7196.4673277935. The cubic root of 51789142 is about 372.7459259174.

The spelling of 51789142 in words is "fifty-one million, seven hundred eighty-nine thousand, one hundred forty-two".