25422420342 has 32 divisors (see below), whose sum is σ = 55663136640. Its totient is φ = 7676536320.

The previous prime is 25422420319. The next prime is 25422420349. The reversal of 25422420342 is 24302422452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25422420349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661867 + ... + 699222.

It is an arithmetic number, because the mean of its divisors is an integer number (1739473020).

Almost surely, 2^25422420342 is an apocalyptic number.

25422420342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25422420342 is an abundant number, since it is smaller than the sum of its proper divisors (30240716298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25422420342 is a wasteful number, since it uses less digits than its factorization.

25422420342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361388.

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 25422420342 its reverse (24302422452), we get a palindrome (49724842794).

The spelling of 25422420342 in words is "twenty-five billion, four hundred twenty-two million, four hundred twenty thousand, three hundred forty-two".