214891025 has 12 divisors (see below), whose sum is σ = 267851532. Its totient is φ = 171018240.

The previous prime is 214891021. The next prime is 214891031. The reversal of 214891025 is 520198412.

It can be written as a sum of positive squares in 6 ways, for example, as 1993744 + 212897281 = 1412^2 + 14591^2 .

It is not a de Polignac number, because 214891025 - 2² = 214891021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214890982 and 214891000.

It is not an unprimeable number, because it can be changed into a prime (214891021) 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, 17444 + ... + 27093.

It is an arithmetic number, because the mean of its divisors is an integer number (22320961).

Almost surely, 2^214891025 is an apocalyptic number.

214891025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

214891025 is a deficient number, since it is larger than the sum of its proper divisors (52960507).

214891025 is a wasteful number, since it uses less digits than its factorization.

214891025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44740 (or 44735 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 214891025 is about 14659.1618109631. The cubic root of 214891025 is about 598.9714089714.

The spelling of 214891025 in words is "two hundred fourteen million, eight hundred ninety-one thousand, twenty-five".