51611606 has 8 divisors (see below), whose sum is σ = 78184224. Its totient is φ = 25550200.

The previous prime is 51611591. The next prime is 51611611. The reversal of 51611606 is 60611615.

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

It is a Curzon number.

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, 127550 + ... + 127953.

It is an arithmetic number, because the mean of its divisors is an integer number (9773028).

Almost surely, 2^51611606 is an apocalyptic number.

51611606 is a deficient number, since it is larger than the sum of its proper divisors (26572618).

51611606 is a wasteful number, since it uses less digits than its factorization.

51611606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255606.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 51611606 is about 7184.1217974085. The cubic root of 51611606 is about 372.3195071702.

Subtracting 51611606 from its reverse (60611615), we obtain a palindrome (9000009).

The spelling of 51611606 in words is "fifty-one million, six hundred eleven thousand, six hundred six".