51384892 has 24 divisors (see below), whose sum is σ = 101939600. Its totient is φ = 22467456.

The previous prime is 51384869. The next prime is 51384917. The reversal of 51384892 is 29848315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25017 + ... + 26992.

Almost surely, 2^51384892 is an apocalyptic number.

51384892 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51384892 is a deficient number, since it is larger than the sum of its proper divisors (50554708).

51384892 is a wasteful number, since it uses less digits than its factorization.

51384892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52045 (or 52043 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 51384892 is about 7168.3256064439. The cubic root of 51384892 is about 371.7735450656.

The spelling of 51384892 in words is "fifty-one million, three hundred eighty-four thousand, eight hundred ninety-two".