25422001 has 8 divisors (see below), whose sum is σ = 27815904. Its totient is φ = 23041920.

The previous prime is 25421999. The next prime is 25422013. The reversal of 25422001 is 10022452.

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

It is not a de Polignac number, because 25422001 - 2¹ = 25421999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25422041) 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, 610 + ... + 7156.

It is an arithmetic number, because the mean of its divisors is an integer number (3476988).

Almost surely, 2^25422001 is an apocalyptic number.

It is an amenable number.

25422001 is a deficient number, since it is larger than the sum of its proper divisors (2393903).

25422001 is a wasteful number, since it uses less digits than its factorization.

25422001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 25422001 is about 5042.0235025236. The cubic root of 25422001 is about 294.0378535800.

Adding to 25422001 its reverse (10022452), we get a palindrome (35444453).

The spelling of 25422001 in words is "twenty-five million, four hundred twenty-two thousand, one".