2512022521 has 4 divisors (see below), whose sum is σ = 2512483200. Its totient is φ = 2511561844.

The previous prime is 2512022497. The next prime is 2512022531. The reversal of 2512022521 is 1252202152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2512022521 - 2¹⁹ = 2511498233 is a prime.

It is a super-2 number, since 2×2512022521² = 12620514292022390882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2512022492 and 2512022501.

It is not an unprimeable number, because it can be changed into a prime (2512022531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222061 + ... + 233098.

It is an arithmetic number, because the mean of its divisors is an integer number (628120800).

Almost surely, 2^2512022521 is an apocalyptic number.

It is an amenable number.

2512022521 is a deficient number, since it is larger than the sum of its proper divisors (460679).

2512022521 is an equidigital number, since it uses as much as digits as its factorization.

2512022521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460678.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2512022521 is about 50120.0810154972. The cubic root of 2512022521 is about 1359.3809395969.

Adding to 2512022521 its reverse (1252202152), we get a palindrome (3764224673).

The spelling of 2512022521 in words is "two billion, five hundred twelve million, twenty-two thousand, five hundred twenty-one".