13540022250 has 64 divisors (see below), whose sum is σ = 35574664320. Its totient is φ = 3420633600.

The previous prime is 13540022219. The next prime is 13540022257. The reversal of 13540022250 is 5222004531.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13540022250.

It is not an unprimeable number, because it can be changed into a prime (13540022257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460839 + ... + 489338.

It is an arithmetic number, because the mean of its divisors is an integer number (555854130).

Almost surely, 2^13540022250 is an apocalyptic number.

13540022250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13540022250 is an abundant number, since it is smaller than the sum of its proper divisors (22034642070).

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

13540022250 is a wasteful number, since it uses less digits than its factorization.

13540022250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950216 (or 950206 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 13540022250 its reverse (5222004531), we get a palindrome (18762026781).

The spelling of 13540022250 in words is "thirteen billion, five hundred forty million, twenty-two thousand, two hundred fifty".