2521213005 has 32 divisors (see below), whose sum is σ = 4080855168. Its totient is φ = 1329056000.

The previous prime is 2521213001. The next prime is 2521213027. The reversal of 2521213005 is 5003121252.

It is not a de Polignac number, because 2521213005 - 2² = 2521213001 is a prime.

It is a super-2 number, since 2×2521213005² = 12713030033162260050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521213001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1242802 + ... + 1244828.

It is an arithmetic number, because the mean of its divisors is an integer number (127526724).

Almost surely, 2^2521213005 is an apocalyptic number.

It is an amenable number.

2521213005 is a deficient number, since it is larger than the sum of its proper divisors (1559642163).

2521213005 is a wasteful number, since it uses less digits than its factorization.

2521213005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2521213005 is about 50211.6819574887. The cubic root of 2521213005 is about 1361.0367320227.

Adding to 2521213005 its reverse (5003121252), we get a palindrome (7524334257).

The spelling of 2521213005 in words is "two billion, five hundred twenty-one million, two hundred thirteen thousand, five".