25036531 has 8 divisors (see below), whose sum is σ = 27691664. Its totient is φ = 22485600.

The previous prime is 25036523. The next prime is 25036577. The reversal of 25036531 is 13563052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25036531 - 2³ = 25036523 is a prime.

It is a super-2 number, since 2×25036531² = 1253655769027922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25036496 and 25036505.

It is not an unprimeable number, because it can be changed into a prime (25036031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25545 + ... + 26506.

It is an arithmetic number, because the mean of its divisors is an integer number (3461458).

Almost surely, 2^25036531 is an apocalyptic number.

25036531 is a deficient number, since it is larger than the sum of its proper divisors (2655133).

25036531 is a wasteful number, since it uses less digits than its factorization.

25036531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52101.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 25036531 is about 5003.6517664602. The cubic root of 25036531 is about 292.5441275621.

Adding to 25036531 its reverse (13563052), we get a palindrome (38599583).

The spelling of 25036531 in words is "twenty-five million, thirty-six thousand, five hundred thirty-one".