51039502 has 8 divisors (see below), whose sum is σ = 78628536. Its totient is φ = 24829992.

The previous prime is 51039481. The next prime is 51039517. The reversal of 51039502 is 20593015.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344788 + ... + 344935.

It is an arithmetic number, because the mean of its divisors is an integer number (9828567).

Almost surely, 2^51039502 is an apocalyptic number.

51039502 is a deficient number, since it is larger than the sum of its proper divisors (27589034).

51039502 is a wasteful number, since it uses less digits than its factorization.

51039502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689762.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 51039502 is about 7144.1935864029. The cubic root of 51039502 is about 370.9386975722.

The spelling of 51039502 in words is "fifty-one million, thirty-nine thousand, five hundred two".