2531715085 has 16 divisors (see below), whose sum is σ = 3116805120. Its totient is φ = 1973119680.

The previous prime is 2531715071. The next prime is 2531715091. The reversal of 2531715085 is 5805171352.

It is a happy number.

2531715085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2531715085 - 2⁹ = 2531714573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68500 + ... + 98770.

It is an arithmetic number, because the mean of its divisors is an integer number (194800320).

Almost surely, 2^2531715085 is an apocalyptic number.

It is an amenable number.

2531715085 is a deficient number, since it is larger than the sum of its proper divisors (585090035).

2531715085 is a wasteful number, since it uses less digits than its factorization.

2531715085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30708.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 2531715085 is about 50316.1513333442. The cubic root of 2531715085 is about 1362.9239077131.

The spelling of 2531715085 in words is "two billion, five hundred thirty-one million, seven hundred fifteen thousand, eighty-five".