51617606 has 8 divisors (see below), whose sum is σ = 79314984. Its totient is φ = 25179280.

The previous prime is 51617581. The next prime is 51617611. The reversal of 51617606 is 60671615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314660 + ... + 314823.

It is an arithmetic number, because the mean of its divisors is an integer number (9914373).

Almost surely, 2^51617606 is an apocalyptic number.

51617606 is a deficient number, since it is larger than the sum of its proper divisors (27697378).

51617606 is a wasteful number, since it uses less digits than its factorization.

51617606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629526.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 51617606 is about 7184.5393728478. The cubic root of 51617606 is about 372.3339343546. Note that the first 3 decimals are identical.

The spelling of 51617606 in words is "fifty-one million, six hundred seventeen thousand, six hundred six".