25401022 has 4 divisors (see below), whose sum is σ = 38101536. Its totient is φ = 12700510.

The previous prime is 25401011. The next prime is 25401029. The reversal of 25401022 is 22010452.

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 = 25400987 and 25401005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25401029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6350254 + ... + 6350257.

It is an arithmetic number, because the mean of its divisors is an integer number (9525384).

Almost surely, 2^25401022 is an apocalyptic number.

25401022 is a deficient number, since it is larger than the sum of its proper divisors (12700514).

25401022 is a wasteful number, since it uses less digits than its factorization.

25401022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12700513.

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

The square root of 25401022 is about 5039.9426584040. The cubic root of 25401022 is about 293.9569483600.

Adding to 25401022 its reverse (22010452), we get a palindrome (47411474).

The spelling of 25401022 in words is "twenty-five million, four hundred one thousand, twenty-two".