2511295421 has 2 divisors, whose sum is σ = 2511295422. Its totient is φ = 2511295420.

The previous prime is 2511295327. The next prime is 2511295429. The reversal of 2511295421 is 1245921152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1408125625 + 1103169796 = 37525^2 + 33214^2 .

It is a cyclic number.

It is not a de Polignac number, because 2511295421 - 2²⁶ = 2444186557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2511295429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255647710 + 1255647711.

It is an arithmetic number, because the mean of its divisors is an integer number (1255647711).

Almost surely, 2^2511295421 is an apocalyptic number.

It is an amenable number.

2511295421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2511295421 is an equidigital number, since it uses as much as digits as its factorization.

2511295421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 32.

The square root of 2511295421 is about 50112.8269108818. The cubic root of 2511295421 is about 1359.2497702234.

The spelling of 2511295421 in words is "two billion, five hundred eleven million, two hundred ninety-five thousand, four hundred twenty-one".