20455325 has 12 divisors (see below), whose sum is σ = 27670848. Its totient is φ = 14876400.

The previous prime is 20455321. The next prime is 20455327. The reversal of 20455325 is 52355402.

It is not a de Polignac number, because 20455325 - 2² = 20455321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20455294 and 20455303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20455321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36917 + ... + 37466.

It is an arithmetic number, because the mean of its divisors is an integer number (2305904).

Almost surely, 2^20455325 is an apocalyptic number.

20455325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20455325 is a deficient number, since it is larger than the sum of its proper divisors (7215523).

20455325 is a wasteful number, since it uses less digits than its factorization.

20455325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74404 (or 74399 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 20455325 is about 4522.7563498380. The cubic root of 20455325 is about 273.4862279962.

The spelling of 20455325 in words is "twenty million, four hundred fifty-five thousand, three hundred twenty-five".