20094550 has 24 divisors (see below), whose sum is σ = 42716016. Its totient is φ = 6889440.

The previous prime is 20094523. The next prime is 20094553. The reversal of 20094550 is 5549002.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20094553) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 28357 + ... + 29056.

It is an arithmetic number, because the mean of its divisors is an integer number (1779834).

Almost surely, 2^20094550 is an apocalyptic number.

20094550 is an abundant number, since it is smaller than the sum of its proper divisors (22621466).

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

20094550 is a wasteful number, since it uses less digits than its factorization.

20094550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57432 (or 57427 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 20094550 is about 4482.6945021940. The cubic root of 20094550 is about 271.8688363424.

The spelling of 20094550 in words is "twenty million, ninety-four thousand, five hundred fifty".