7825500 has 144 divisors (see below), whose sum is σ = 25893504. Its totient is φ = 1987200.

The previous prime is 7825487. The next prime is 7825501. The reversal of 7825500 is 55287.

It is a happy number.

It is a super-2 number, since 2×7825500² = 122476900500000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7825501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166477 + ... + 166523.

It is an arithmetic number, because the mean of its divisors is an integer number (179816).

Almost surely, 2^7825500 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 7825500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12946752).

7825500 is an abundant number, since it is smaller than the sum of its proper divisors (18068004).

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

7825500 is a wasteful number, since it uses less digits than its factorization.

7825500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 7825500 is about 2797.4095159629. The cubic root of 7825500 is about 198.5351303122.

The spelling of 7825500 in words is "seven million, eight hundred twenty-five thousand, five hundred".