51294190 has 8 divisors (see below), whose sum is σ = 92329560. Its totient is φ = 20517672.

The previous prime is 51294161. The next prime is 51294193. The reversal of 51294190 is 9149215.

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

It is a super-2 number, since 2×51294190² = 5262187855512200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51294193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2564700 + ... + 2564719.

It is an arithmetic number, because the mean of its divisors is an integer number (11541195).

Almost surely, 2^51294190 is an apocalyptic number.

51294190 is a deficient number, since it is larger than the sum of its proper divisors (41035370).

51294190 is a wasteful number, since it uses less digits than its factorization.

51294190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129426.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 51294190 is about 7161.9962301023. The cubic root of 51294190 is about 371.5546709771.

The spelling of 51294190 in words is "fifty-one million, two hundred ninety-four thousand, one hundred ninety".