2539622401 has 8 divisors (see below), whose sum is σ = 2723051520. Its totient is φ = 2359975488.

The previous prime is 2539622389. The next prime is 2539622413. The reversal of 2539622401 is 1042269352.

It is an interprime number because it is at equal distance from previous prime (2539622389) and next prime (2539622413).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2539622401 - 2²⁹ = 2002751489 is a prime.

It is a super-2 number, since 2×2539622401² = 12899363879322009602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2539622801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944161 + ... + 946846.

It is an arithmetic number, because the mean of its divisors is an integer number (340381440).

Almost surely, 2^2539622401 is an apocalyptic number.

It is an amenable number.

2539622401 is a deficient number, since it is larger than the sum of its proper divisors (183429119).

2539622401 is a wasteful number, since it uses less digits than its factorization.

2539622401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891103.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2539622401 is about 50394.6663943715. Note that the first 3 decimals coincide. The cubic root of 2539622401 is about 1364.3413749329.

The spelling of 2539622401 in words is "two billion, five hundred thirty-nine million, six hundred twenty-two thousand, four hundred one".