51670016 has 22 divisors (see below), whose sum is σ = 103291620. Its totient is φ = 25834496.

The previous prime is 51670013. The next prime is 51670027. The reversal of 51670016 is 61007615.

It is not an unprimeable number, because it can be changed into a prime (51670013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24206 + ... + 26253.

Almost surely, 2^51670016 is an apocalyptic number.

It is an amenable number.

51670016 is a deficient number, since it is larger than the sum of its proper divisors (51621604).

51670016 is an equidigital number, since it uses as much as digits as its factorization.

51670016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50479 (or 50461 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 51670016 is about 7188.1858629281. The cubic root of 51670016 is about 372.4599083017.

The spelling of 51670016 in words is "fifty-one million, six hundred seventy thousand, sixteen".