2605158001 has 4 divisors (see below), whose sum is σ = 2742271600. Its totient is φ = 2468044404.

The previous prime is 2605157993. The next prime is 2605158011. The reversal of 2605158001 is 1008515062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1008515062 = 2 ⋅504257531.

It is a cyclic number.

It is not a de Polignac number, because 2605158001 - 2³ = 2605157993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2605158011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68556771 + ... + 68556808.

It is an arithmetic number, because the mean of its divisors is an integer number (685567900).

Almost surely, 2^2605158001 is an apocalyptic number.

It is an amenable number.

2605158001 is a deficient number, since it is larger than the sum of its proper divisors (137113599).

2605158001 is a wasteful number, since it uses less digits than its factorization.

2605158001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137113598.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 2605158001 is about 51040.7484369107. The cubic root of 2605158001 is about 1375.9775749638.

The spelling of 2605158001 in words is "two billion, six hundred five million, one hundred fifty-eight thousand, one".