51512248 has 16 divisors (see below), whose sum is σ = 96765480. Its totient is φ = 25708128.

The previous prime is 51512233. The next prime is 51512267. The reversal of 51512248 is 84221515.

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, 1215 + ... + 10222.

Almost surely, 2^51512248 is an apocalyptic number.

It is an amenable number.

51512248 is a deficient number, since it is larger than the sum of its proper divisors (45253232).

51512248 is a wasteful number, since it uses less digits than its factorization.

51512248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12006 (or 12002 counting only the distinct ones).

The product of its digits is 3200, while the sum is 28.

The square root of 51512248 is about 7177.2033550680. The cubic root of 51512248 is about 372.0804350676.

The spelling of 51512248 in words is "fifty-one million, five hundred twelve thousand, two hundred forty-eight".