20545325 has 12 divisors (see below), whose sum is σ = 26584608. Its totient is φ = 15721200.

The previous prime is 20545309. The next prime is 20545331. The reversal of 20545325 is 52354502.

It is not a de Polignac number, because 20545325 - 2⁴ = 20545309 is a prime.

It is a super-2 number, since 2×20545325² = 844220758711250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20545294 and 20545303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17291 + ... + 18440.

It is an arithmetic number, because the mean of its divisors is an integer number (2215384).

Almost surely, 2^20545325 is an apocalyptic number.

20545325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20545325 is a deficient number, since it is larger than the sum of its proper divisors (6039283).

20545325 is a wasteful number, since it uses less digits than its factorization.

20545325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35764 (or 35759 counting only the distinct ones).

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

The square root of 20545325 is about 4532.6951143883. The cubic root of 20545325 is about 273.8867390236.

Adding to 20545325 its reverse (52354502), we get a palindrome (72899827).

The spelling of 20545325 in words is "twenty million, five hundred forty-five thousand, three hundred twenty-five".