22380525 has 18 divisors (see below), whose sum is σ = 40086410. Its totient is φ = 11936160.

The previous prime is 22380521. The next prime is 22380569. The reversal of 22380525 is 52508322.

It can be written as a sum of positive squares in 3 ways, for example, as 224676 + 22155849 = 474^2 + 4707^2 .

It is not a de Polignac number, because 22380525 - 2² = 22380521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22380521) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49510 + ... + 49959.

Almost surely, 2^22380525 is an apocalyptic number.

22380525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22380525 is a deficient number, since it is larger than the sum of its proper divisors (17705885).

22380525 is a wasteful number, since it uses less digits than its factorization.

22380525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99485 (or 99477 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 22380525 is about 4730.8059567055. The cubic root of 22380525 is about 281.8102314630.

Adding to 22380525 its reverse (52508322), we get a palindrome (74888847).

The spelling of 22380525 in words is "twenty-two million, three hundred eighty thousand, five hundred twenty-five".