20365525 has 12 divisors (see below), whose sum is σ = 25312864. Its totient is φ = 16254000.

The previous prime is 20365493. The next prime is 20365537. The reversal of 20365525 is 52556302.

It is not a de Polignac number, because 20365525 - 2⁵ = 20365493 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20365493 and 20365502.

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, 15130 + ... + 16420.

Almost surely, 2^20365525 is an apocalyptic number.

20365525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20365525 is a deficient number, since it is larger than the sum of its proper divisors (4947339).

20365525 is a wasteful number, since it uses less digits than its factorization.

20365525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1927 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 20365525 is about 4512.8178558413. The cubic root of 20365525 is about 273.0854344012.

The spelling of 20365525 in words is "twenty million, three hundred sixty-five thousand, five hundred twenty-five".