51587086 has 8 divisors (see below), whose sum is σ = 77603400. Its totient is φ = 25719288.

The previous prime is 51587083. The next prime is 51587087. The reversal of 51587086 is 68078515.

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

It is a super-2 number, since 2×51587086² = 5322454883942792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51587083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36256 + ... + 37651.

It is an arithmetic number, because the mean of its divisors is an integer number (9700425).

Almost surely, 2^51587086 is an apocalyptic number.

51587086 is a deficient number, since it is larger than the sum of its proper divisors (26016314).

51587086 is a wasteful number, since it uses less digits than its factorization.

51587086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74258.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 51587086 is about 7182.4150534482. The cubic root of 51587086 is about 372.2605364519.

The spelling of 51587086 in words is "fifty-one million, five hundred eighty-seven thousand, eighty-six".