20225070 has 48 divisors (see below), whose sum is σ = 55682640. Its totient is φ = 5075712.

The previous prime is 20225069. The next prime is 20225071. The reversal of 20225070 is 7052202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20225069) and next prime (20225071).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20225071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5080 + ... + 8139.

It is an arithmetic number, because the mean of its divisors is an integer number (1160055).

Almost surely, 2^20225070 is an apocalyptic number.

20225070 is an abundant number, since it is smaller than the sum of its proper divisors (35457570).

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

20225070 is a wasteful number, since it uses less digits than its factorization.

20225070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13249 (or 13246 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 20225070 is about 4497.2291469304. The cubic root of 20225070 is about 272.4561891243.

Adding to 20225070 its reverse (7052202), we get a palindrome (27277272).

The spelling of 20225070 in words is "twenty million, two hundred twenty-five thousand, seventy".