51613606 has 16 divisors (see below), whose sum is σ = 84894480. Its totient is φ = 23339680.

The previous prime is 51613589. The next prime is 51613621. The reversal of 51613606 is 60631615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1621 + ... + 10288.

It is an arithmetic number, because the mean of its divisors is an integer number (5305905).

Almost surely, 2^51613606 is an apocalyptic number.

51613606 is a deficient number, since it is larger than the sum of its proper divisors (33280874).

51613606 is a wasteful number, since it uses less digits than its factorization.

51613606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12119.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 51613606 is about 7184.2609919184. The cubic root of 51613606 is about 372.3243163559.

Subtracting 51613606 from its reverse (60631615), we obtain a square (9018009 = 3003²).

The spelling of 51613606 in words is "fifty-one million, six hundred thirteen thousand, six hundred six".