51257214 has 12 divisors (see below), whose sum is σ = 111057336. Its totient is φ = 17085732.

The previous prime is 51257189. The next prime is 51257249. The reversal of 51257214 is 41275215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1423794 + ... + 1423829.

It is an arithmetic number, because the mean of its divisors is an integer number (9254778).

Almost surely, 2^51257214 is an apocalyptic number.

51257214 is an abundant number, since it is smaller than the sum of its proper divisors (59800122).

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

51257214 is a wasteful number, since it uses less digits than its factorization.

51257214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847631 (or 2847628 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 51257214 is about 7159.4143615243. The cubic root of 51257214 is about 371.4653697129.

The spelling of 51257214 in words is "fifty-one million, two hundred fifty-seven thousand, two hundred fourteen".