15055133551240 has 32 divisors (see below), whose sum is σ = 33874288073280. Its totient is φ = 6022011183552.

The previous prime is 15055133551223. The next prime is 15055133551243. The reversal of 15055133551240 is 4215533155051.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 15055133551193 and 15055133551202.

It is not an unprimeable number, because it can be changed into a prime (15055133551243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4805437 + ... + 7294003.

It is an arithmetic number, because the mean of its divisors is an integer number (1058571502290).

Almost surely, 2^{15055133551240} is an apocalyptic number.

15055133551240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15055133551240 is an abundant number, since it is smaller than the sum of its proper divisors (18819154522040).

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

15055133551240 is a wasteful number, since it uses less digits than its factorization.

15055133551240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639821 (or 2639817 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 40.

The spelling of 15055133551240 in words is "fifteen trillion, fifty-five billion, one hundred thirty-three million, five hundred fifty-one thousand, two hundred forty".