4052605391 has 4 divisors (see below), whose sum is σ = 4146852072. Its totient is φ = 3958358712.

The previous prime is 4052605369. The next prime is 4052605421. The reversal of 4052605391 is 1935062504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4052605391 - 2⁶ = 4052605327 is a prime.

It is a super-2 number, since 2×4052605391² = 32847220910324525762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4052605331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47123276 + ... + 47123361.

It is an arithmetic number, because the mean of its divisors is an integer number (1036713018).

Almost surely, 2^4052605391 is an apocalyptic number.

4052605391 is a deficient number, since it is larger than the sum of its proper divisors (94246681).

4052605391 is an equidigital number, since it uses as much as digits as its factorization.

4052605391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94246680.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 4052605391 is about 63660.0769006761. The cubic root of 4052605391 is about 1594.3295880442.

Adding to 4052605391 its reverse (1935062504), we get a palindrome (5987667895).

The spelling of 4052605391 in words is "four billion, fifty-two million, six hundred five thousand, three hundred ninety-one".