2625399801 has 24 divisors (see below), whose sum is σ = 3858209160. Its totient is φ = 1719878400.

The previous prime is 2625399797. The next prime is 2625399823. The reversal of 2625399801 is 1089935262.

2625399801 is a `hidden beast` number, since 26 + 2 + 539 + 98 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6007401 + 2619392400 = 2451^2 + 51180^2 .

It is not a de Polignac number, because 2625399801 - 2² = 2625399797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2625399871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 811455 + ... + 814683.

It is an arithmetic number, because the mean of its divisors is an integer number (160758715).

Almost surely, 2^2625399801 is an apocalyptic number.

It is an amenable number.

2625399801 is a deficient number, since it is larger than the sum of its proper divisors (1232809359).

2625399801 is a wasteful number, since it uses less digits than its factorization.

2625399801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777 (or 4774 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 2625399801 is about 51238.6553394993. The cubic root of 2625399801 is about 1379.5321176922.

The spelling of 2625399801 in words is "two billion, six hundred twenty-five million, three hundred ninety-nine thousand, eight hundred one".