3901253805 has 24 divisors (see below), whose sum is σ = 6766501560. Its totient is φ = 2079336960.

The previous prime is 3901253791. The next prime is 3901253821. The reversal of 3901253805 is 5083521093.

It can be written as a sum of positive squares in 4 ways, for example, as 1456643556 + 2444610249 = 38166^2 + 49443^2 .

It is not a de Polignac number, because 3901253805 - 2⁵ = 3901253773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3901253805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45465 + ... + 99345.

It is an arithmetic number, because the mean of its divisors is an integer number (281937565).

Almost surely, 2^3901253805 is an apocalyptic number.

It is an amenable number.

3901253805 is a deficient number, since it is larger than the sum of its proper divisors (2865247755).

3901253805 is a wasteful number, since it uses less digits than its factorization.

3901253805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55501 (or 55498 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 3901253805 is about 62460.0176512943. The cubic root of 3901253805 is about 1574.2295793658.

Adding to 3901253805 its reverse (5083521093), we get a palindrome (8984774898).

The spelling of 3901253805 in words is "three billion, nine hundred one million, two hundred fifty-three thousand, eight hundred five".