2521630038 has 32 divisors (see below), whose sum is σ = 5068306656. Its totient is φ = 836379648.

The previous prime is 2521630003. The next prime is 2521630039. The reversal of 2521630038 is 8300361252.

It is a junction number, because it is equal to n+sod(n) for n = 2521629987 and 2521630014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521630039) 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, 1758970 + ... + 1760402.

It is an arithmetic number, because the mean of its divisors is an integer number (158384583).

Almost surely, 2^2521630038 is an apocalyptic number.

2521630038 is an abundant number, since it is smaller than the sum of its proper divisors (2546676618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2521630038 is a wasteful number, since it uses less digits than its factorization.

2521630038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2521630038 is about 50215.8345345370. The cubic root of 2521630038 is about 1361.1117707624. Note that the first 3 decimals are identical.

The spelling of 2521630038 in words is "two billion, five hundred twenty-one million, six hundred thirty thousand, thirty-eight".