51503248 has 10 divisors (see below), whose sum is σ = 99787574. Its totient is φ = 25751616.

The previous prime is 51503239. The next prime is 51503299. The reversal of 51503248 is 84230515.

It can be written as a sum of positive squares in only one way, i.e., 38340864 + 13162384 = 6192^2 + 3628^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609461 + ... + 1609492.

Almost surely, 2^51503248 is an apocalyptic number.

It is an amenable number.

51503248 is a deficient number, since it is larger than the sum of its proper divisors (48284326).

51503248 is a wasteful number, since it uses less digits than its factorization.

51503248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218961 (or 3218955 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 51503248 is about 7176.5763425188. The cubic root of 51503248 is about 372.0587643706.

The spelling of 51503248 in words is "fifty-one million, five hundred three thousand, two hundred forty-eight".