7250000 has 70 divisors (see below), whose sum is σ = 18163830. Its totient is φ = 2800000.

The previous prime is 7249997. The next prime is 7250011. The reversal of 7250000 is 527.

It can be written as a sum of positive squares in 7 ways, for example, as 7246864 + 3136 = 2692^2 + 56^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 249986 + ... + 250014.

Almost surely, 2^7250000 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 7250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9081915).

7250000 is an abundant number, since it is smaller than the sum of its proper divisors (10913830).

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

7250000 is an frugal number, since it uses more digits than its factorization.

7250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 7250000 is about 2692.5824035673. The cubic root of 7250000 is about 193.5438320314.

Adding to 7250000 its reverse (527), we get a palindrome (7250527).

The spelling of 7250000 in words is "seven million, two hundred fifty thousand".