20225913 has 8 divisors (see below), whose sum is σ = 27476928. Its totient is φ = 13229424.

The previous prime is 20225911. The next prime is 20225917. The reversal of 20225913 is 31952202.

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

It is not a de Polignac number, because 20225913 - 2¹ = 20225911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20225911) 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, 63445 + ... + 63762.

It is an arithmetic number, because the mean of its divisors is an integer number (3434616).

Almost surely, 2^20225913 is an apocalyptic number.

It is an amenable number.

20225913 is a deficient number, since it is larger than the sum of its proper divisors (7251015).

20225913 is a wasteful number, since it uses less digits than its factorization.

20225913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127263.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 20225913 is about 4497.3228703307. The cubic root of 20225913 is about 272.4599744820.

The spelling of 20225913 in words is "twenty million, two hundred twenty-five thousand, nine hundred thirteen".