51657016 has 24 divisors (see below), whose sum is σ = 102894120. Its totient is φ = 24308096.

The previous prime is 51657013. The next prime is 51657019. The reversal of 51657016 is 61075615.

It is an interprime number because it is at equal distance from previous prime (51657013) and next prime (51657019).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51657013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8860 + ... + 13483.

It is an arithmetic number, because the mean of its divisors is an integer number (4287255).

Almost surely, 2^51657016 is an apocalyptic number.

It is an amenable number.

51657016 is a deficient number, since it is larger than the sum of its proper divisors (51237104).

51657016 is a wasteful number, since it uses less digits than its factorization.

51657016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22383 (or 22362 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 51657016 is about 7187.2815445062. The cubic root of 51657016 is about 372.4286691336.

The spelling of 51657016 in words is "fifty-one million, six hundred fifty-seven thousand, sixteen".