23490525 has 12 divisors (see below), whose sum is σ = 38837792. Its totient is φ = 12528240.

The previous prime is 23490503. The next prime is 23490541. The reversal of 23490525 is 52509432.

It is not a de Polignac number, because 23490525 - 2⁶ = 23490461 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23490492 and 23490501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156529 + ... + 156678.

Almost surely, 2^23490525 is an apocalyptic number.

23490525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23490525 is a deficient number, since it is larger than the sum of its proper divisors (15347267).

23490525 is a wasteful number, since it uses less digits than its factorization.

23490525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313220 (or 313215 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 23490525 is about 4846.7024872587. The cubic root of 23490525 is about 286.3942148798.

Adding to 23490525 its reverse (52509432), we get a palindrome (75999957).

The spelling of 23490525 in words is "twenty-three million, four hundred ninety thousand, five hundred twenty-five".