51087622 has 8 divisors (see below), whose sum is σ = 77887872. Its totient is φ = 25125000.

The previous prime is 51087613. The next prime is 51087661. The reversal of 51087622 is 22678015.

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

It is a super-2 number, since 2×51087622² = 5219890243229768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209254 + ... + 209497.

It is an arithmetic number, because the mean of its divisors is an integer number (9735984).

Almost surely, 2^51087622 is an apocalyptic number.

51087622 is a deficient number, since it is larger than the sum of its proper divisors (26800250).

51087622 is a wasteful number, since it uses less digits than its factorization.

51087622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418814.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 51087622 is about 7147.5605628774. The cubic root of 51087622 is about 371.0552345213.

The spelling of 51087622 in words is "fifty-one million, eighty-seven thousand, six hundred twenty-two".