12554001240 has 64 divisors (see below), whose sum is σ = 41085826560. Its totient is φ = 3043393920.

The previous prime is 12554001217. The next prime is 12554001277. The reversal of 12554001240 is 4210045521.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12554001240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4753984 + ... + 4756623.

It is an arithmetic number, because the mean of its divisors is an integer number (641966040).

Almost surely, 2^12554001240 is an apocalyptic number.

12554001240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12554001240 is an abundant number, since it is smaller than the sum of its proper divisors (28531825320).

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

12554001240 is a wasteful number, since it uses less digits than its factorization.

12554001240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9510632 (or 9510628 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 12554001240 its reverse (4210045521), we get a palindrome (16764046761).

The spelling of 12554001240 in words is "twelve billion, five hundred fifty-four million, one thousand, two hundred forty".