49563990 has 72 divisors (see below), whose sum is σ = 149919120. Its totient is φ = 11327904.

The previous prime is 49563977. The next prime is 49564019. The reversal of 49563990 is 9936594.

It is a happy number.

49563990 is a `hidden beast` number, since 4 + 9 + 5 + 639 + 9 + 0 = 666.

49563990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1210 + ... + 10029.

It is an arithmetic number, because the mean of its divisors is an integer number (2082210).

Almost surely, 2^49563990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49563990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74959560).

49563990 is an abundant number, since it is smaller than the sum of its proper divisors (100355130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49563990 is a wasteful number, since it uses less digits than its factorization.

49563990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11266 (or 11256 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 49563990 is about 7040.1697422718. The cubic root of 49563990 is about 367.3291723059.

The spelling of 49563990 in words is "forty-nine million, five hundred sixty-three thousand, nine hundred ninety".