2505030257 has 8 divisors (see below), whose sum is σ = 2767706496. Its totient is φ = 2255167552.

The previous prime is 2505030233. The next prime is 2505030287. The reversal of 2505030257 is 7520305052.

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 2505030257 - 2²⁶ = 2437921393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505030287) 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, 3202973 + ... + 3203754.

It is an arithmetic number, because the mean of its divisors is an integer number (345963312).

Almost surely, 2^2505030257 is an apocalyptic number.

It is an amenable number.

2505030257 is a deficient number, since it is larger than the sum of its proper divisors (262676239).

2505030257 is a wasteful number, since it uses less digits than its factorization.

2505030257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6406767.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 2505030257 is about 50050.2772919392. The cubic root of 2505030257 is about 1358.1184796670.

The spelling of 2505030257 in words is "two billion, five hundred five million, thirty thousand, two hundred fifty-seven".