51575252 has 12 divisors (see below), whose sum is σ = 91528416. Its totient is φ = 25424280.

The previous prime is 51575231. The next prime is 51575261. The reversal of 51575252 is 25257515.

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, 90518 + ... + 91085.

It is an arithmetic number, because the mean of its divisors is an integer number (7627368).

Almost surely, 2^51575252 is an apocalyptic number.

It is an amenable number.

51575252 is a deficient number, since it is larger than the sum of its proper divisors (39953164).

51575252 is a wasteful number, since it uses less digits than its factorization.

51575252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181678 (or 181676 counting only the distinct ones).

The product of its digits is 17500, while the sum is 32.

The square root of 51575252 is about 7181.5911885877. The cubic root of 51575252 is about 372.2320689391.

The spelling of 51575252 in words is "fifty-one million, five hundred seventy-five thousand, two hundred fifty-two".