51939102 has 8 divisors (see below), whose sum is σ = 103878216. Its totient is φ = 17313032.

The previous prime is 51939101. The next prime is 51939119. The reversal of 51939102 is 20193915.

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

51939102 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 51939102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51939101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4328253 + ... + 4328264.

It is an arithmetic number, because the mean of its divisors is an integer number (12984777).

Almost surely, 2^51939102 is an apocalyptic number.

51939102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51939102 is a wasteful number, since it uses less digits than its factorization.

51939102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8656522.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 51939102 is about 7206.8787973713. The cubic root of 51939102 is about 373.1053520569.

It can be divided in two parts, 519 and 39102, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 51939102 in words is "fifty-one million, nine hundred thirty-nine thousand, one hundred two".