211413425 has 24 divisors (see below), whose sum is σ = 269982720. Its totient is φ = 164124800.

The previous prime is 211413409. The next prime is 211413427. The reversal of 211413425 is 524314112.

It is not a de Polignac number, because 211413425 - 2⁴ = 211413409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211413425.

It is not an unprimeable number, because it can be changed into a prime (211413427) 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, 244544 + ... + 245406.

It is an arithmetic number, because the mean of its divisors is an integer number (11249280).

Almost surely, 2^211413425 is an apocalyptic number.

211413425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211413425 is a deficient number, since it is larger than the sum of its proper divisors (58569295).

211413425 is a wasteful number, since it uses less digits than its factorization.

211413425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 1148 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 211413425 is about 14540.0627577738. The cubic root of 211413425 is about 595.7227523389.

Adding to 211413425 its reverse (524314112), we get a palindrome (735727537).

The spelling of 211413425 in words is "two hundred eleven million, four hundred thirteen thousand, four hundred twenty-five".