2610531257 has 8 divisors (see below), whose sum is σ = 2724552384. Its totient is φ = 2496553488.

The previous prime is 2610531241. The next prime is 2610531289. The reversal of 2610531257 is 7521350162.

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 2610531257 - 2⁴ = 2610531241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2610530257) 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, 198158 + ... + 210920.

It is an arithmetic number, because the mean of its divisors is an integer number (340569048).

Almost surely, 2^2610531257 is an apocalyptic number.

It is an amenable number.

2610531257 is a deficient number, since it is larger than the sum of its proper divisors (114021127).

2610531257 is a wasteful number, since it uses less digits than its factorization.

2610531257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21679.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 2610531257 is about 51093.3582474278. The cubic root of 2610531257 is about 1376.9229306064.

The spelling of 2610531257 in words is "two billion, six hundred ten million, five hundred thirty-one thousand, two hundred fifty-seven".