51610198 has 24 divisors (see below), whose sum is σ = 85100400. Its totient is φ = 23442048.

The previous prime is 51610193. The next prime is 51610211. The reversal of 51610198 is 89101615.

It is a super-2 number, since 2×51610198² = 5327225075198408, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 15223 + ... + 18301.

It is an arithmetic number, because the mean of its divisors is an integer number (3545850).

Almost surely, 2^51610198 is an apocalyptic number.

51610198 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

51610198 is a deficient number, since it is larger than the sum of its proper divisors (33490202).

51610198 is a wasteful number, since it uses less digits than its factorization.

51610198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144 (or 3127 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 51610198 is about 7184.0238028559. The cubic root of 51610198 is about 372.3161214289.

The spelling of 51610198 in words is "fifty-one million, six hundred ten thousand, one hundred ninety-eight".