51669376 has 32 divisors (see below), whose sum is σ = 112295880. Its totient is φ = 23485440.

The previous prime is 51669367. The next prime is 51669383. The reversal of 51669376 is 67396615.

It is a tau number, because it is divible by the number of its divisors (32).

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, 16941 + ... + 19756.

Almost surely, 2^51669376 is an apocalyptic number.

It is an amenable number.

51669376 is an abundant number, since it is smaller than the sum of its proper divisors (60626504).

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

51669376 is a wasteful number, since it uses less digits than its factorization.

51669376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36722 (or 36710 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 51669376 is about 7188.1413452992. The cubic root of 51669376 is about 372.4583704960.

The spelling of 51669376 in words is "fifty-one million, six hundred sixty-nine thousand, three hundred seventy-six".