5625990 has 64 divisors (see below), whose sum is σ = 15275520. Its totient is φ = 1473120.

The previous prime is 5625967. The next prime is 5626001. The reversal of 5625990 is 995265.

5625990 is a `hidden beast` number, since 5 + 62 + 599 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17935 + ... + 18245.

It is an arithmetic number, because the mean of its divisors is an integer number (238680).

Almost surely, 2^5625990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5625990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7637760).

5625990 is an abundant number, since it is smaller than the sum of its proper divisors (9649530).

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

5625990 is a wasteful number, since it uses less digits than its factorization.

5625990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 5625990 is about 2371.9169462694. The cubic root of 5625990 is about 177.8550981662.

The spelling of 5625990 in words is "five million, six hundred twenty-five thousand, nine hundred ninety".