7287887250 has 512 divisors, whose sum is σ = 25145303040. Its totient is φ = 1524096000.

The previous prime is 7287887213. The next prime is 7287887273. The reversal of 7287887250 is 527887827.

It is a super-2 number, since 2×7287887250² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 34539645 + ... + 34539855.

It is an arithmetic number, because the mean of its divisors is an integer number (49111920).

Almost surely, 2^7287887250 is an apocalyptic number.

7287887250 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7287887250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12572651520).

7287887250 is an abundant number, since it is smaller than the sum of its proper divisors (17857415790).

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

7287887250 is a wasteful number, since it uses less digits than its factorization.

7287887250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 3512320, while the sum is 54.

The square root of 7287887250 is about 85369.1235166439. The cubic root of 7287887250 is about 1938.8038868029.

The spelling of 7287887250 in words is "seven billion, two hundred eighty-seven million, eight hundred eighty-seven thousand, two hundred fifty".