51979192 has 8 divisors (see below), whose sum is σ = 97461000. Its totient is φ = 25989592.

The previous prime is 51979159. The next prime is 51979201. The reversal of 51979192 is 29197915.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3248692 + ... + 3248707.

It is an arithmetic number, because the mean of its divisors is an integer number (12182625).

Almost surely, 2^51979192 is an apocalyptic number.

It is an amenable number.

51979192 is a deficient number, since it is larger than the sum of its proper divisors (45481808).

51979192 is a wasteful number, since it uses less digits than its factorization.

51979192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6497405 (or 6497401 counting only the distinct ones).

The product of its digits is 51030, while the sum is 43.

The square root of 51979192 is about 7209.6596313557. The cubic root of 51979192 is about 373.2013230831.

The spelling of 51979192 in words is "fifty-one million, nine hundred seventy-nine thousand, one hundred ninety-two".