2539408031 has 6 divisors (see below), whose sum is σ = 2697572160. Its totient is φ = 2390030816.

The previous prime is 2539408019. The next prime is 2539408033. The reversal of 2539408031 is 1308049352.

It is a de Polignac number, because none of the positive numbers 2^k-2539408031 is a prime.

It is a super-2 number, since 2×2539408031² = 12897186295814593922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2539407982 and 2539408000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539408033) 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, 4393151 + ... + 4393728.

It is an arithmetic number, because the mean of its divisors is an integer number (449595360).

Almost surely, 2^2539408031 is an apocalyptic number.

2539408031 is a deficient number, since it is larger than the sum of its proper divisors (158164129).

2539408031 is an equidigital number, since it uses as much as digits as its factorization.

2539408031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8786913 (or 8786896 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2539408031 is about 50392.5394378970. The cubic root of 2539408031 is about 1364.3029857495.

The spelling of 2539408031 in words is "two billion, five hundred thirty-nine million, four hundred eight thousand, thirty-one".