51602191 has 8 divisors (see below), whose sum is σ = 54760320. Its totient is φ = 48457728.

The previous prime is 51602189. The next prime is 51602219. The reversal of 51602191 is 19120615.

51602191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51602191 - 2¹ = 51602189 is a prime.

It is a super-2 number, since 2×51602191² = 5325572232000962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51602101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4975 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (6845040).

Almost surely, 2^51602191 is an apocalyptic number.

51602191 is a deficient number, since it is larger than the sum of its proper divisors (3158129).

51602191 is a wasteful number, since it uses less digits than its factorization.

51602191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6833.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 51602191 is about 7183.4665030193. The cubic root of 51602191 is about 372.2968662592.

The spelling of 51602191 in words is "fifty-one million, six hundred two thousand, one hundred ninety-one".