25633942 has 4 divisors (see below), whose sum is σ = 38450916. Its totient is φ = 12816970.

The previous prime is 25633939. The next prime is 25633957. The reversal of 25633942 is 24933652.

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

It is a junction number, because it is equal to n+sod(n) for n = 25633898 and 25633907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6408484 + ... + 6408487.

It is an arithmetic number, because the mean of its divisors is an integer number (9612729).

Almost surely, 2^25633942 is an apocalyptic number.

25633942 is a deficient number, since it is larger than the sum of its proper divisors (12816974).

25633942 is a wasteful number, since it uses less digits than its factorization.

25633942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12816973.

The product of its digits is 38880, while the sum is 34.

The square root of 25633942 is about 5062.9973335960. The cubic root of 25633942 is about 294.8527159063.

The spelling of 25633942 in words is "twenty-five million, six hundred thirty-three thousand, nine hundred forty-two".