25342450340 has 24 divisors (see below), whose sum is σ = 53235978432. Its totient is φ = 10133773920.

The previous prime is 25342450327. The next prime is 25342450351. The reversal of 25342450340 is 4305424352.

It is a super-2 number, since 2×25342450340² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25342450297 and 25342450306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135056 + ... + 262535.

It is an arithmetic number, because the mean of its divisors is an integer number (2218165768).

Almost surely, 2^25342450340 is an apocalyptic number.

25342450340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25342450340 is an abundant number, since it is smaller than the sum of its proper divisors (27893528092).

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

25342450340 is a wasteful number, since it uses less digits than its factorization.

25342450340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400787 (or 400785 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 25342450340 its reverse (4305424352), we get a palindrome (29647874692).

The spelling of 25342450340 in words is "twenty-five billion, three hundred forty-two million, four hundred fifty thousand, three hundred forty".