49890587 has 2 divisors, whose sum is σ = 49890588. Its totient is φ = 49890586.

The previous prime is 49890559. The next prime is 49890601. The reversal of 49890587 is 78509894.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49890587 - 2¹⁰ = 49889563 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (49890557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24945293 + 24945294.

It is an arithmetic number, because the mean of its divisors is an integer number (24945294).

Almost surely, 2^49890587 is an apocalyptic number.

49890587 is a deficient number, since it is larger than the sum of its proper divisors (1).

49890587 is an equidigital number, since it uses as much as digits as its factorization.

49890587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 49890587 is about 7063.3269073433. The cubic root of 49890587 is about 368.1342329896.

The spelling of 49890587 in words is "forty-nine million, eight hundred ninety thousand, five hundred eighty-seven".