7257544650 has 96 divisors (see below), whose sum is σ = 20041128000. Its totient is φ = 1931227200.

The previous prime is 7257544639. The next prime is 7257544673. The reversal of 7257544650 is 564457527.

7257544650 is a `hidden beast` number, since 7 + 2 + 57 + 544 + 6 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7257544596 and 7257544605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 657376 + ... + 668324.

It is an arithmetic number, because the mean of its divisors is an integer number (208761750).

Almost surely, 2^7257544650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7257544650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10020564000).

7257544650 is an abundant number, since it is smaller than the sum of its proper divisors (12783583350).

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

7257544650 is a wasteful number, since it uses less digits than its factorization.

7257544650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11461 (or 11450 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 45.

The square root of 7257544650 is about 85191.2240198484. The cubic root of 7257544650 is about 1936.1094532992.

The spelling of 7257544650 in words is "seven billion, two hundred fifty-seven million, five hundred forty-four thousand, six hundred fifty".