51385292 has 12 divisors (see below), whose sum is σ = 102770640. Its totient is φ = 22022256.

The previous prime is 51385247. The next prime is 51385319. The reversal of 51385292 is 29258315.

51385292 is an admirable 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, 917567 + ... + 917622.

It is an arithmetic number, because the mean of its divisors is an integer number (8564220).

Almost surely, 2^51385292 is an apocalyptic number.

It is an amenable number.

51385292 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.

51385292 is a wasteful number, since it uses less digits than its factorization.

51385292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835200 (or 1835198 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 51385292 is about 7168.3535069080. The cubic root of 51385292 is about 371.7745097398.

The spelling of 51385292 in words is "fifty-one million, three hundred eighty-five thousand, two hundred ninety-two".