2521021124 has 6 divisors (see below), whose sum is σ = 4411786974. Its totient is φ = 1260510560.

The previous prime is 2521021123. The next prime is 2521021133. The reversal of 2521021124 is 4211201252.

It can be written as a sum of positive squares in only one way, i.e., 1444000000 + 1077021124 = 38000^2 + 32818^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2521021096 and 2521021105.

It is not an unprimeable number, because it can be changed into a prime (2521021121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315127637 + ... + 315127644.

It is an arithmetic number, because the mean of its divisors is an integer number (735297829).

Almost surely, 2^2521021124 is an apocalyptic number.

It is an amenable number.

2521021124 is a deficient number, since it is larger than the sum of its proper divisors (1890765850).

2521021124 is a wasteful number, since it uses less digits than its factorization.

2521021124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630255285 (or 630255283 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2521021124 is about 50209.7712004347. The cubic root of 2521021124 is about 1361.0022031783.

Adding to 2521021124 its reverse (4211201252), we get a palindrome (6732222376).

The spelling of 2521021124 in words is "two billion, five hundred twenty-one million, twenty-one thousand, one hundred twenty-four".