7245143645550 has 48 divisors (see below), whose sum is σ = 17969572009200. Its totient is φ = 1931864567040.

The previous prime is 7245143645539. The next prime is 7245143645561. The reversal of 7245143645550 is 555463415427.

It is an interprime number because it is at equal distance from previous prime (7245143645539) and next prime (7245143645561).

It is a junction number, because it is equal to n+sod(n) for n = 7245143645493 and 7245143645502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493807 + ... + 3838506.

It is an arithmetic number, because the mean of its divisors is an integer number (374366083525).

Almost surely, 2^{7245143645550} is an apocalyptic number.

7245143645550 is an abundant number, since it is smaller than the sum of its proper divisors (10724428363650).

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

7245143645550 is a wasteful number, since it uses less digits than its factorization.

7245143645550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343477 (or 4343472 counting only the distinct ones).

The product of its (nonzero) digits is 10080000, while the sum is 51.

The spelling of 7245143645550 in words is "seven trillion, two hundred forty-five billion, one hundred forty-three million, six hundred forty-five thousand, five hundred fifty".