2521042436 has 24 divisors (see below), whose sum is σ = 5066211360. Its totient is φ = 1085616000.

The previous prime is 2521042423. The next prime is 2521042463. The reversal of 2521042436 is 6342401252.

It is a super-2 number, since 2×2521042436² = 12711309928225628192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2521042399 and 2521042408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506965 + ... + 1508636.

It is an arithmetic number, because the mean of its divisors is an integer number (211092140).

Almost surely, 2^2521042436 is an apocalyptic number.

It is an amenable number.

2521042436 is an abundant number, since it is smaller than the sum of its proper divisors (2545168924).

2521042436 is a wasteful number, since it uses less digits than its factorization.

2521042436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015635 (or 3015633 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2521042436 is about 50209.9834295930. The cubic root of 2521042436 is about 1361.0060383434.

Adding to 2521042436 its reverse (6342401252), we get a palindrome (8863443688).

The spelling of 2521042436 in words is "two billion, five hundred twenty-one million, forty-two thousand, four hundred thirty-six".