2581032530 has 32 divisors (see below), whose sum is σ = 4714512768. Its totient is φ = 1017187200.

The previous prime is 2581032529. The next prime is 2581032547. The reversal of 2581032530 is 352301852.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2581032493 and 2581032502.

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, 1335665 + ... + 1337595.

It is an arithmetic number, because the mean of its divisors is an integer number (147328524).

Almost surely, 2^2581032530 is an apocalyptic number.

2581032530 is a deficient number, since it is larger than the sum of its proper divisors (2133480238).

2581032530 is a wasteful number, since it uses less digits than its factorization.

2581032530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2581032530 is about 50803.8633373487. The cubic root of 2581032530 is about 1371.7169107841.

The spelling of 2581032530 in words is "two billion, five hundred eighty-one million, thirty-two thousand, five hundred thirty".