51064616 has 16 divisors (see below), whose sum is σ = 95836500. Its totient is φ = 25508224.

The previous prime is 51064613. The next prime is 51064631. The reversal of 51064616 is 61646015.

It can be written as a sum of positive squares in 2 ways, for example, as 31967716 + 19096900 = 5654^2 + 4370^2 .

It is not an unprimeable number, because it can be changed into a prime (51064613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8660 + ... + 13308.

Almost surely, 2^51064616 is an apocalyptic number.

It is an amenable number.

51064616 is a deficient number, since it is larger than the sum of its proper divisors (44771884).

51064616 is a wasteful number, since it uses less digits than its factorization.

51064616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028 (or 6024 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 51064616 is about 7145.9510213827. The cubic root of 51064616 is about 370.9995277564. Note that the first 3 decimals are identical.

The spelling of 51064616 in words is "fifty-one million, sixty-four thousand, six hundred sixteen".