25042433 has 4 divisors (see below), whose sum is σ = 26968788. Its totient is φ = 23116080.

The previous prime is 25042429. The next prime is 25042441. The reversal of 25042433 is 33424052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11916304 + 13126129 = 3452^2 + 3623^2 .

It is not a de Polignac number, because 25042433 - 2² = 25042429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25042399 and 25042408.

It is not an unprimeable number, because it can be changed into a prime (25042403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963158 + ... + 963183.

It is an arithmetic number, because the mean of its divisors is an integer number (6742197).

Almost surely, 2^25042433 is an apocalyptic number.

It is an amenable number.

25042433 is a deficient number, since it is larger than the sum of its proper divisors (1926355).

25042433 is a wasteful number, since it uses less digits than its factorization.

25042433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926354.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 25042433 is about 5004.2415009670. The cubic root of 25042433 is about 292.5671134380.

Adding to 25042433 its reverse (33424052), we get a palindrome (58466485).

The spelling of 25042433 in words is "twenty-five million, forty-two thousand, four hundred thirty-three".