7255111571552 has 96 divisors (see below), whose sum is σ = 15917258548800. Its totient is φ = 3232111454208.

The previous prime is 7255111571479. The next prime is 7255111571593. The reversal of 7255111571552 is 2551751115527.

It is a junction number, because it is equal to n+sod(n) for n = 7255111571497 and 7255111571506.

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, 42464474 + ... + 42634982.

It is an arithmetic number, because the mean of its divisors is an integer number (165804776550).

Almost surely, 2^{7255111571552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7255111571552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7958629274400).

7255111571552 is an abundant number, since it is smaller than the sum of its proper divisors (8662146977248).

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

7255111571552 is a wasteful number, since it uses less digits than its factorization.

7255111571552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174088 (or 174080 counting only the distinct ones).

The product of its digits is 612500, while the sum is 47.

The spelling of 7255111571552 in words is "seven trillion, two hundred fifty-five billion, one hundred eleven million, five hundred seventy-one thousand, five hundred fifty-two".