7555125440 has 56 divisors (see below), whose sum is σ = 18031053600. Its totient is φ = 3015262208.

The previous prime is 7555125379. The next prime is 7555125449. The reversal of 7555125440 is 445215557.

It is a junction number, because it is equal to n+sod(n) for n = 7555125394 and 7555125403.

It is not an unprimeable number, because it can be changed into a prime (7555125449) 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, 117389 + ... + 169971.

It is an arithmetic number, because the mean of its divisors is an integer number (321983100).

Almost surely, 2^7555125440 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 7555125440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9015526800).

7555125440 is an abundant number, since it is smaller than the sum of its proper divisors (10475928160).

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

7555125440 is a wasteful number, since it uses less digits than its factorization.

7555125440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53049 (or 53039 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 38.

The square root of 7555125440 is about 86920.2245740311. The cubic root of 7555125440 is about 1962.2178697839.

The spelling of 7555125440 in words is "seven billion, five hundred fifty-five million, one hundred twenty-five thousand, four hundred forty".