51252542 has 16 divisors (see below), whose sum is σ = 85914864. Its totient is φ = 22728000.

The previous prime is 51252527. The next prime is 51252559. The reversal of 51252542 is 24525215.

51252542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51252542² = 5253646122923528, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 27509 + ... + 29312.

It is an arithmetic number, because the mean of its divisors is an integer number (5369679).

Almost surely, 2^51252542 is an apocalyptic number.

51252542 is a deficient number, since it is larger than the sum of its proper divisors (34662322).

51252542 is a wasteful number, since it uses less digits than its factorization.

51252542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56875.

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

The square root of 51252542 is about 7159.0880704179. The cubic root of 51252542 is about 371.4540832434.

Adding to 51252542 its reverse (24525215), we get a palindrome (75777757).

It can be divided in two parts, 5125 and 2542, that added together give a palindrome (7667).

The spelling of 51252542 in words is "fifty-one million, two hundred fifty-two thousand, five hundred forty-two".