2581254523 has 16 divisors (see below), whose sum is σ = 2693154816. Its totient is φ = 2472275520.

The previous prime is 2581254521. The next prime is 2581254541. The reversal of 2581254523 is 3254521852.

It is a cyclic number.

It is not a de Polignac number, because 2581254523 - 2¹ = 2581254521 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2581254521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446590 + ... + 452332.

It is an arithmetic number, because the mean of its divisors is an integer number (168322176).

Almost surely, 2^2581254523 is an apocalyptic number.

2581254523 is a deficient number, since it is larger than the sum of its proper divisors (111900293).

2581254523 is a wasteful number, since it uses less digits than its factorization.

2581254523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994.

The product of its digits is 96000, while the sum is 37.

The square root of 2581254523 is about 50806.0480946905. The cubic root of 2581254523 is about 1371.7562364957.

The spelling of 2581254523 in words is "two billion, five hundred eighty-one million, two hundred fifty-four thousand, five hundred twenty-three".