51605202 has 16 divisors (see below), whose sum is σ = 112593312. Its totient is φ = 15637920.

The previous prime is 51605189. The next prime is 51605221. The reversal of 51605202 is 20250615.

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, 390883 + ... + 391014.

It is an arithmetic number, because the mean of its divisors is an integer number (7037082).

Almost surely, 2^51605202 is an apocalyptic number.

51605202 is an abundant number, since it is smaller than the sum of its proper divisors (60988110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51605202 is a wasteful number, since it uses less digits than its factorization.

51605202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781913.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51605202 is about 7183.6760784434. The cubic root of 51605202 is about 372.3041073216.

Adding to 51605202 its reverse (20250615), we get a palindrome (71855817).

The spelling of 51605202 in words is "fifty-one million, six hundred five thousand, two hundred two".