2539692801 has 6 divisors (see below), whose sum is σ = 3668445170. Its totient is φ = 1693128528.

The previous prime is 2539692797. The next prime is 2539692809. The reversal of 2539692801 is 1082969352.

It can be written as a sum of positive squares in only one way, i.e., 1797675201 + 742017600 = 42399^2 + 27240^2 .

It is not a de Polignac number, because 2539692801 - 2² = 2539692797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2539692809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141094036 + ... + 141094053.

Almost surely, 2^2539692801 is an apocalyptic number.

It is an amenable number.

2539692801 is a deficient number, since it is larger than the sum of its proper divisors (1128752369).

2539692801 is a wasteful number, since it uses less digits than its factorization.

2539692801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282188095 (or 282188092 counting only the distinct ones).

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

The square root of 2539692801 is about 50395.3648761471. The cubic root of 2539692801 is about 1364.3539816292.

The spelling of 2539692801 in words is "two billion, five hundred thirty-nine million, six hundred ninety-two thousand, eight hundred one".