12252053540 has 48 divisors (see below), whose sum is σ = 26860014720. Its totient is φ = 4685640960.

The previous prime is 12252053531. The next prime is 12252053543. The reversal of 12252053540 is 4535025221.

It is a super-2 number, since 2×12252053540² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12252053543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1361255 + ... + 1370225.

It is an arithmetic number, because the mean of its divisors is an integer number (559583640).

Almost surely, 2^12252053540 is an apocalyptic number.

12252053540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12252053540 is an abundant number, since it is smaller than the sum of its proper divisors (14607961180).

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

12252053540 is a wasteful number, since it uses less digits than its factorization.

12252053540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11972 (or 11970 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 12252053540 its reverse (4535025221), we get a palindrome (16787078761).

The spelling of 12252053540 in words is "twelve billion, two hundred fifty-two million, fifty-three thousand, five hundred forty".