2512275421 has 4 divisors (see below), whose sum is σ = 2512944000. Its totient is φ = 2511606844.

The previous prime is 2512275377. The next prime is 2512275427. The reversal of 2512275421 is 1245722152.

It is a happy number.

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 2512275421 - 2¹¹ = 2512273373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512275427) 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, 328621 + ... + 336178.

It is an arithmetic number, because the mean of its divisors is an integer number (628236000).

Almost surely, 2^2512275421 is an apocalyptic number.

It is an amenable number.

2512275421 is a deficient number, since it is larger than the sum of its proper divisors (668579).

2512275421 is an equidigital number, since it uses as much as digits as its factorization.

2512275421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668578.

The product of its digits is 11200, while the sum is 31.

The square root of 2512275421 is about 50122.6038928546. The cubic root of 2512275421 is about 1359.4265570095.

Adding to 2512275421 its reverse (1245722152), we get a palindrome (3757997573).

The spelling of 2512275421 in words is "two billion, five hundred twelve million, two hundred seventy-five thousand, four hundred twenty-one".