51683457 has 16 divisors (see below), whose sum is σ = 79643520. Its totient is φ = 29200512.

The previous prime is 51683449. The next prime is 51683497. The reversal of 51683457 is 75438615.

It is not a de Polignac number, because 51683457 - 2³ = 51683449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51683447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11958 + ... + 15695.

It is an arithmetic number, because the mean of its divisors is an integer number (4977720).

Almost surely, 2^51683457 is an apocalyptic number.

It is an amenable number.

51683457 is a deficient number, since it is larger than the sum of its proper divisors (27960063).

51683457 is a wasteful number, since it uses less digits than its factorization.

51683457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27752.

The product of its digits is 100800, while the sum is 39.

The square root of 51683457 is about 7189.1207390056. The cubic root of 51683457 is about 372.4922016895.

The spelling of 51683457 in words is "fifty-one million, six hundred eighty-three thousand, four hundred fifty-seven".