20038525 has 12 divisors (see below), whose sum is σ = 26759572. Its totient is φ = 14797440.

The previous prime is 20038481. The next prime is 20038531. The reversal of 20038525 is 52583002.

It can be written as a sum of positive squares in 6 ways, for example, as 2247001 + 17791524 = 1499^2 + 4218^2 .

It is not a de Polignac number, because 20038525 - 2¹³ = 20030333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20038525.

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, 30504 + ... + 31153.

Almost surely, 2^20038525 is an apocalyptic number.

20038525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20038525 is a deficient number, since it is larger than the sum of its proper divisors (6721047).

20038525 is a wasteful number, since it uses less digits than its factorization.

20038525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61680 (or 61675 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 20038525 is about 4476.4411087381. The cubic root of 20038525 is about 271.6159381027.

The spelling of 20038525 in words is "twenty million, thirty-eight thousand, five hundred twenty-five".