23522425 has 12 divisors (see below), whose sum is σ = 29569660. Its totient is φ = 18558720.

The previous prime is 23522423. The next prime is 23522467. The reversal of 23522425 is 52422532.

23522425 = T₇₆₆ + T₇₆₇ + ... + T₈₃₈.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 19321 + 23503104 = 139^2 + 4848^2 .

It is not a de Polignac number, because 23522425 - 2¹ = 23522423 is a prime.

It is a super-3 number, since 3×23522425³ (a number of 23 digits) contains 333 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23522425.

It is not an unprimeable number, because it can be changed into a prime (23522423) 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, 4620 + ... + 8269.

Almost surely, 2^23522425 is an apocalyptic number.

23522425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23522425 is a deficient number, since it is larger than the sum of its proper divisors (6047235).

23522425 is a wasteful number, since it uses less digits than its factorization.

23522425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12972 (or 12967 counting only the distinct ones).

The product of its digits is 4800, while the sum is 25.

The square root of 23522425 is about 4849.9922680351. The cubic root of 23522425 is about 286.5237968146.

Adding to 23522425 its reverse (52422532), we get a palindrome (75944957).

The spelling of 23522425 in words is "twenty-three million, five hundred twenty-two thousand, four hundred twenty-five".