51002542 has 8 divisors (see below), whose sum is σ = 76927032. Its totient is φ = 25360200.

The previous prime is 51002531. The next prime is 51002557. The reversal of 51002542 is 24520015.

51002542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 70084 + ... + 70807.

It is an arithmetic number, because the mean of its divisors is an integer number (9615879).

Almost surely, 2^51002542 is an apocalyptic number.

51002542 is a deficient number, since it is larger than the sum of its proper divisors (25924490).

51002542 is a wasteful number, since it uses less digits than its factorization.

51002542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141074.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 51002542 is about 7141.6064019239. The cubic root of 51002542 is about 370.8491381501.

Adding to 51002542 its reverse (24520015), we get a palindrome (75522557).

The spelling of 51002542 in words is "fifty-one million, two thousand, five hundred forty-two".