51610197 has 8 divisors (see below), whose sum is σ = 69756544. Its totient is φ = 33935328.

The previous prime is 51610193. The next prime is 51610211. The reversal of 51610197 is 79101615.

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

It is not a de Polignac number, because 51610197 - 2² = 51610193 is a prime.

It is a super-2 number, since 2×51610197² = 5327224868757618, 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 (51610193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117613 + ... + 118050.

It is an arithmetic number, because the mean of its divisors is an integer number (8719568).

Almost surely, 2^51610197 is an apocalyptic number.

It is an amenable number.

51610197 is a deficient number, since it is larger than the sum of its proper divisors (18146347).

51610197 is a wasteful number, since it uses less digits than its factorization.

51610197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235739.

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 51610197 is about 7184.0237332570. The cubic root of 51610197 is about 372.3161190242.

The spelling of 51610197 in words is "fifty-one million, six hundred ten thousand, one hundred ninety-seven".