25870022 has 16 divisors (see below), whose sum is σ = 41964480. Its totient is φ = 11914368.

The previous prime is 25870003. The next prime is 25870037. The reversal of 25870022 is 22007852.

It is a junction number, because it is equal to n+sod(n) for n = 25869973 and 25870000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6497 + ... + 9692.

It is an arithmetic number, because the mean of its divisors is an integer number (2622780).

Almost surely, 2^25870022 is an apocalyptic number.

25870022 is a deficient number, since it is larger than the sum of its proper divisors (16094458).

25870022 is a wasteful number, since it uses less digits than its factorization.

25870022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16255.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 25870022 is about 5086.2581531023. The cubic root of 25870022 is about 295.7551161242.

Adding to 25870022 its reverse (22007852), we get a palindrome (47877874).

The spelling of 25870022 in words is "twenty-five million, eight hundred seventy thousand, twenty-two".