25266210340 has 48 divisors (see below), whose sum is σ = 60648118272. Its totient is φ = 8661384576.

The previous prime is 25266210331. The next prime is 25266210377. The reversal of 25266210340 is 4301266252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1527997 + ... + 1544443.

It is an arithmetic number, because the mean of its divisors is an integer number (1263502464).

Almost surely, 2^25266210340 is an apocalyptic number.

25266210340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25266210340 is an abundant number, since it is smaller than the sum of its proper divisors (35381907932).

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

25266210340 is a wasteful number, since it uses less digits than its factorization.

25266210340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27436 (or 27434 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 25266210340 its reverse (4301266252), we get a palindrome (29567476592).

The spelling of 25266210340 in words is "twenty-five billion, two hundred sixty-six million, two hundred ten thousand, three hundred forty".