7572253640 has 64 divisors (see below), whose sum is σ = 19540517760. Its totient is φ = 2587000320.

The previous prime is 7572253631. The next prime is 7572253649. The reversal of 7572253640 is 463522757.

It is an interprime number because it is at equal distance from previous prime (7572253631) and next prime (7572253649).

It is not an unprimeable number, because it can be changed into a prime (7572253649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31460 + ... + 127020.

It is an arithmetic number, because the mean of its divisors is an integer number (305320590).

Almost surely, 2^7572253640 is an apocalyptic number.

7572253640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7572253640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9770258880).

7572253640 is an abundant number, since it is smaller than the sum of its proper divisors (11968264120).

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

7572253640 is a wasteful number, since it uses less digits than its factorization.

7572253640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95862 (or 95858 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 41.

The square root of 7572253640 is about 87018.6970713766. The cubic root of 7572253640 is about 1963.6995964980.

The spelling of 7572253640 in words is "seven billion, five hundred seventy-two million, two hundred fifty-three thousand, six hundred forty".