51339260 has 36 divisors (see below), whose sum is σ = 125416872. Its totient is φ = 17601696.

The previous prime is 51339259. The next prime is 51339271. The reversal of 51339260 is 6293315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25214 + ... + 27173.

It is an arithmetic number, because the mean of its divisors is an integer number (3483802).

Almost surely, 2^51339260 is an apocalyptic number.

It is an amenable number.

51339260 is an abundant number, since it is smaller than the sum of its proper divisors (74077612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51339260 is a wasteful number, since it uses less digits than its factorization.

51339260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52410 (or 52401 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 51339260 is about 7165.1420083624. The cubic root of 51339260 is about 371.6634621596.

The spelling of 51339260 in words is "fifty-one million, three hundred thirty-nine thousand, two hundred sixty".