20372025 has 24 divisors (see below), whose sum is σ = 33926400. Its totient is φ = 10786240.

The previous prime is 20371999. The next prime is 20372029. The reversal of 20372025 is 52027302.

It is not a de Polignac number, because 20372025 - 2⁵ = 20371993 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20371992 and 20372010.

It is not an unprimeable number, because it can be changed into a prime (20372029) 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, 10264 + ... + 12086.

It is an arithmetic number, because the mean of its divisors is an integer number (1413600).

Almost surely, 2^20372025 is an apocalyptic number.

20372025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20372025 is a deficient number, since it is larger than the sum of its proper divisors (13554375).

20372025 is a wasteful number, since it uses less digits than its factorization.

20372025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20372025 is about 4513.5379692654. The cubic root of 20372025 is about 273.1144845814.

Adding to 20372025 its reverse (52027302), we get a palindrome (72399327).

The spelling of 20372025 in words is "twenty million, three hundred seventy-two thousand, twenty-five".