2521427871 has 16 divisors (see below), whose sum is σ = 3412366848. Its totient is φ = 1655908800.

The previous prime is 2521427809. The next prime is 2521427897. The reversal of 2521427871 is 1787241252.

It is not a de Polignac number, because 2521427871 - 2²¹ = 2519330719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521427071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30426 + ... + 77256.

It is an arithmetic number, because the mean of its divisors is an integer number (213272928).

Almost surely, 2^2521427871 is an apocalyptic number.

2521427871 is a deficient number, since it is larger than the sum of its proper divisors (890938977).

2521427871 is a wasteful number, since it uses less digits than its factorization.

2521427871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47102.

The product of its digits is 62720, while the sum is 39.

The square root of 2521427871 is about 50213.8215136032. The cubic root of 2521427871 is about 1361.0753949217.

The spelling of 2521427871 in words is "two billion, five hundred twenty-one million, four hundred twenty-seven thousand, eight hundred seventy-one".