25424362340 has 48 divisors (see below), whose sum is σ = 57539810160. Its totient is φ = 9380659200.

The previous prime is 25424362333. The next prime is 25424362349. The reversal of 25424362340 is 4326342452.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6238788196 + 19185574144 = 78986^2 + 138512^2 .

It is a super-2 number, since 2×25424362340² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25424362340.

It is not an unprimeable number, because it can be changed into a prime (25424362349) 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, 331640 + ... + 401040.

It is an arithmetic number, because the mean of its divisors is an integer number (1198746045).

Almost surely, 2^25424362340 is an apocalyptic number.

25424362340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25424362340 is an abundant number, since it is smaller than the sum of its proper divisors (32115447820).

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

25424362340 is a wasteful number, since it uses less digits than its factorization.

25424362340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70832 (or 70830 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

The spelling of 25424362340 in words is "twenty-five billion, four hundred twenty-four million, three hundred sixty-two thousand, three hundred forty".