2625847540 has 24 divisors (see below), whose sum is σ = 5838649992. Its totient is φ = 988554240.

The previous prime is 2625847459. The next prime is 2625847547. The reversal of 2625847540 is 457485262.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 929396196 + 1696451344 = 30486^2 + 41188^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625847547) 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 7 ways as a sum of consecutive naturals, for example, 3861201 + ... + 3861880.

It is an arithmetic number, because the mean of its divisors is an integer number (243277083).

Almost surely, 2^2625847540 is an apocalyptic number.

2625847540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2625847540 is an abundant number, since it is smaller than the sum of its proper divisors (3212802452).

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

2625847540 is a wasteful number, since it uses less digits than its factorization.

2625847540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723107 (or 7723105 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 43.

The square root of 2625847540 is about 51243.0243057531. The cubic root of 2625847540 is about 1379.6105356181.

The spelling of 2625847540 in words is "two billion, six hundred twenty-five million, eight hundred forty-seven thousand, five hundred forty".