214240525 has 12 divisors (see below), whose sum is σ = 266030964. Its totient is φ = 171152000.

The previous prime is 214240483. The next prime is 214240529. The reversal of 214240525 is 525042412.

It can be written as a sum of positive squares in 6 ways, for example, as 5669161 + 208571364 = 2381^2 + 14442^2 .

It is not a de Polignac number, because 214240525 - 2²³ = 205851917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214240525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214240529) 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, 13395 + ... + 24655.

It is an arithmetic number, because the mean of its divisors is an integer number (22169247).

Almost surely, 2^214240525 is an apocalyptic number.

214240525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

214240525 is a deficient number, since it is larger than the sum of its proper divisors (51790439).

214240525 is a wasteful number, since it uses less digits than its factorization.

214240525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12032 (or 12027 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 214240525 is about 14636.9575048915. The cubic root of 214240525 is about 598.3664128396.

Adding to 214240525 its reverse (525042412), we get a palindrome (739282937).

The spelling of 214240525 in words is "two hundred fourteen million, two hundred forty thousand, five hundred twenty-five".