2625144740 has 12 divisors (see below), whose sum is σ = 5512803996. Its totient is φ = 1050057888.

The previous prime is 2625144707. The next prime is 2625144787. The reversal of 2625144740 is 474415262.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 508592704 + 2116552036 = 22552^2 + 46006^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2625144740.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65628599 + ... + 65628638.

It is an arithmetic number, because the mean of its divisors is an integer number (459400333).

Almost surely, 2^2625144740 is an apocalyptic number.

2625144740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2625144740 is an abundant number, since it is smaller than the sum of its proper divisors (2887659256).

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

2625144740 is a wasteful number, since it uses less digits than its factorization.

2625144740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131257246 (or 131257244 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 2625144740 is about 51236.1663280929. The cubic root of 2625144740 is about 1379.4874417998.

The spelling of 2625144740 in words is "two billion, six hundred twenty-five million, one hundred forty-four thousand, seven hundred forty".