7255022544 has 360 divisors, whose sum is σ = 27013896000. Its totient is φ = 1773066240.

The previous prime is 7255022513. The next prime is 7255022563. The reversal of 7255022544 is 4452205527.

It is a super-2 number, since 2×7255022544² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7255022499 and 7255022508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2071707 + ... + 2075205.

It is an arithmetic number, because the mean of its divisors is an integer number (75038600).

Almost surely, 2^7255022544 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 7255022544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13506948000).

7255022544 is an abundant number, since it is smaller than the sum of its proper divisors (19758873456).

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

7255022544 is a wasteful number, since it uses less digits than its factorization.

7255022544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559 (or 3539 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 36.

The square root of 7255022544 is about 85176.4201173071. The cubic root of 7255022544 is about 1935.8851515892.

The spelling of 7255022544 in words is "seven billion, two hundred fifty-five million, twenty-two thousand, five hundred forty-four".