51242552 has 16 divisors (see below), whose sum is σ = 97032600. Its totient is φ = 25367200.

The previous prime is 51242533. The next prime is 51242561. The reversal of 51242552 is 25524215.

51242552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30902 + ... + 32517.

Almost surely, 2^51242552 is an apocalyptic number.

It is an amenable number.

51242552 is a deficient number, since it is larger than the sum of its proper divisors (45790048).

51242552 is a wasteful number, since it uses less digits than its factorization.

51242552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63526 (or 63522 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 51242552 is about 7158.3903218531. The cubic root of 51242552 is about 371.4299474167.

Adding to 51242552 its reverse (25524215), we get a palindrome (76766767).

The spelling of 51242552 in words is "fifty-one million, two hundred forty-two thousand, five hundred fifty-two".