20677025 has 12 divisors (see below), whose sum is σ = 25711152. Its totient is φ = 16495440.

The previous prime is 20677003. The next prime is 20677037. The reversal of 20677025 is 52077602.

It is a happy number.

It is not a de Polignac number, because 20677025 - 2⁶ = 20676961 is a prime.

It is a super-3 number, since 3×20677025³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10142 + ... + 12008.

It is an arithmetic number, because the mean of its divisors is an integer number (2142596).

Almost surely, 2^20677025 is an apocalyptic number.

20677025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20677025 is a deficient number, since it is larger than the sum of its proper divisors (5034127).

20677025 is a wasteful number, since it uses less digits than its factorization.

20677025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320 (or 2315 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 20677025 is about 4547.1996877199. The cubic root of 20677025 is about 274.4707175000.

The spelling of 20677025 in words is "twenty million, six hundred seventy-seven thousand, twenty-five".