20674025 has 12 divisors (see below), whose sum is σ = 25755792. Its totient is φ = 16461840.

The previous prime is 20674021. The next prime is 20674037. The reversal of 20674025 is 52047602.

It is not a de Polignac number, because 20674025 - 2² = 20674021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20673985 and 20674003.

It is not an unprimeable number, because it can be changed into a prime (20674021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3854 + ... + 7496.

It is an arithmetic number, because the mean of its divisors is an integer number (2146316).

Almost surely, 2^20674025 is an apocalyptic number.

20674025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20674025 is a deficient number, since it is larger than the sum of its proper divisors (5081767).

20674025 is a wasteful number, since it uses less digits than its factorization.

20674025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880 (or 3875 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 20674025 is about 4546.8698024025. The cubic root of 20674025 is about 274.4574426699.

The spelling of 20674025 in words is "twenty million, six hundred seventy-four thousand, twenty-five".