25809483 has 8 divisors (see below), whose sum is σ = 39328768. Its totient is φ = 14748264.

The previous prime is 25809481. The next prime is 25809493. The reversal of 25809483 is 38490852.

It is a happy number.

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

It is not a de Polignac number, because 25809483 - 2¹ = 25809481 is a prime.

It is a super-2 number, since 2×25809483² = 1332258825454578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25809481) 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, 614491 + ... + 614532.

It is an arithmetic number, because the mean of its divisors is an integer number (4916096).

Almost surely, 2^25809483 is an apocalyptic number.

25809483 is a deficient number, since it is larger than the sum of its proper divisors (13519285).

25809483 is a wasteful number, since it uses less digits than its factorization.

25809483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229033.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 25809483 is about 5080.3034358196. The cubic root of 25809483 is about 295.5242349448.

The spelling of 25809483 in words is "twenty-five million, eight hundred nine thousand, four hundred eighty-three".