25432013 has 8 divisors (see below), whose sum is σ = 27424320. Its totient is φ = 23505120.

The previous prime is 25432003. The next prime is 25432019. The reversal of 25432013 is 31023452.

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 25432013 - 2¹⁸ = 25169869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25432019) 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, 15545 + ... + 17102.

It is an arithmetic number, because the mean of its divisors is an integer number (3428040).

Almost surely, 2^25432013 is an apocalyptic number.

It is an amenable number.

25432013 is a deficient number, since it is larger than the sum of its proper divisors (1992307).

25432013 is a wasteful number, since it uses less digits than its factorization.

25432013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32707.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 25432013 is about 5043.0162601364. The cubic root of 25432013 is about 294.0764490287.

Adding to 25432013 its reverse (31023452), we get a palindrome (56455465).

The spelling of 25432013 in words is "twenty-five million, four hundred thirty-two thousand, thirteen".