20373625 has 8 divisors (see below), whose sum is σ = 25426440. Its totient is φ = 16298800.

The previous prime is 20373623. The next prime is 20373629. The reversal of 20373625 is 52637302.

It can be written as a sum of positive squares in 4 ways, for example, as 4477456 + 15896169 = 2116^2 + 3987^2 .

It is not a de Polignac number, because 20373625 - 2¹ = 20373623 is a prime.

It is a super-3 number, since 3×20373625³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20373593 and 20373602.

It is not an unprimeable number, because it can be changed into a prime (20373623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81370 + ... + 81619.

It is an arithmetic number, because the mean of its divisors is an integer number (3178305).

Almost surely, 2^20373625 is an apocalyptic number.

20373625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20373625 is a deficient number, since it is larger than the sum of its proper divisors (5052815).

20373625 is an equidigital number, since it uses as much as digits as its factorization.

20373625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163004 (or 162994 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 20373625 is about 4513.7152103339. The cubic root of 20373625 is about 273.1216344472.

The spelling of 20373625 in words is "twenty million, three hundred seventy-three thousand, six hundred twenty-five".