2251562614421 has 4 divisors (see below), whose sum is σ = 2312415658092. Its totient is φ = 2190709570752.

The previous prime is 2251562614409. The next prime is 2251562614471. The reversal of 2251562614421 is 1244162651522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1968650323396 + 282912291025 = 1403086^2 + 531895^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251562614421 - 2³⁸ = 1976684707477 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 (2251562614471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30426521780 + ... + 30426521853.

It is an arithmetic number, because the mean of its divisors is an integer number (578103914523).

Almost surely, 2^{2251562614421} is an apocalyptic number.

It is an amenable number.

2251562614421 is a deficient number, since it is larger than the sum of its proper divisors (60853043671).

2251562614421 is an equidigital number, since it uses as much as digits as its factorization.

2251562614421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60853043670.

The product of its digits is 230400, while the sum is 41.

The spelling of 2251562614421 in words is "two trillion, two hundred fifty-one billion, five hundred sixty-two million, six hundred fourteen thousand, four hundred twenty-one".