50987621 has 8 divisors (see below), whose sum is σ = 54814080. Its totient is φ = 47275488.

The previous prime is 50987609. The next prime is 50987633. The reversal of 50987621 is 12678905.

It is an interprime number because it is at equal distance from previous prime (50987609) and next prime (50987633).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50987621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50987681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27656 + ... + 29441.

It is an arithmetic number, because the mean of its divisors is an integer number (6851760).

Almost surely, 2^50987621 is an apocalyptic number.

It is an amenable number.

50987621 is a deficient number, since it is larger than the sum of its proper divisors (3826459).

50987621 is a wasteful number, since it uses less digits than its factorization.

50987621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57163.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 50987621 is about 7140.5616725857. The cubic root of 50987621 is about 370.8129701509.

The spelling of 50987621 in words is "fifty million, nine hundred eighty-seven thousand, six hundred twenty-one".