51977196 has 36 divisors (see below), whose sum is σ = 134446312. Its totient is φ = 16922304.

The previous prime is 51977131. The next prime is 51977201. The reversal of 51977196 is 69177915.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15241 + ... + 18336.

Almost surely, 2^51977196 is an apocalyptic number.

It is an amenable number.

51977196 is an abundant number, since it is smaller than the sum of its proper divisors (82469116).

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

51977196 is a wasteful number, since it uses less digits than its factorization.

51977196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33630 (or 33625 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 51977196 is about 7209.5212046293. The cubic root of 51977196 is about 373.1965460473.

The spelling of 51977196 in words is "fifty-one million, nine hundred seventy-seven thousand, one hundred ninety-six".