7842210525 has 72 divisors (see below), whose sum is σ = 14822533440. Its totient is φ = 3955480320.

The previous prime is 7842210487. The next prime is 7842210539. The reversal of 7842210525 is 5250122487.

It is a happy number.

7842210525 is a `hidden beast` number, since 78 + 42 + 21 + 0 + 525 = 666.

7842210525 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7842210525 - 2¹⁵ = 7842177757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7842210525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 452062 + ... + 469088.

It is an arithmetic number, because the mean of its divisors is an integer number (205868520).

Almost surely, 2^7842210525 is an apocalyptic number.

7842210525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7842210525 is a deficient number, since it is larger than the sum of its proper divisors (6980322915).

7842210525 is a wasteful number, since it uses less digits than its factorization.

7842210525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17155 (or 17147 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 7842210525 is about 88556.2562724961. The cubic root of 7842210525 is about 1986.7634674461.

The spelling of 7842210525 in words is "seven billion, eight hundred forty-two million, two hundred ten thousand, five hundred twenty-five".