25006536 has 32 divisors (see below), whose sum is σ = 69463200. Its totient is φ = 8335440.

The previous prime is 25006519. The next prime is 25006549. The reversal of 25006536 is 63560052.

25006536 is a `hidden beast` number, since 2 + 5 + 0 + 0 + 653 + 6 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57670 + ... + 58101.

It is an arithmetic number, because the mean of its divisors is an integer number (2170725).

Almost surely, 2^25006536 is an apocalyptic number.

It is an amenable number.

25006536 is an abundant number, since it is smaller than the sum of its proper divisors (44456664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25006536 is a wasteful number, since it uses less digits than its factorization.

25006536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115786 (or 115776 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 25006536 is about 5000.6535572863. The cubic root of 25006536 is about 292.4272534409.

Adding to 25006536 its reverse (63560052), we get a palindrome (88566588).

The spelling of 25006536 in words is "twenty-five million, six thousand, five hundred thirty-six".