2541472621 has 4 divisors (see below), whose sum is σ = 2541815100. Its totient is φ = 2541130144.

The previous prime is 2541472603. The next prime is 2541472627. The reversal of 2541472621 is 1262741452.

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 343175625 + 2198296996 = 18525^2 + 46886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541472621 - 2²¹ = 2539375469 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 (2541472627) 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, 159856 + ... + 175033.

It is an arithmetic number, because the mean of its divisors is an integer number (635453775).

Almost surely, 2^2541472621 is an apocalyptic number.

It is an amenable number.

2541472621 is a deficient number, since it is larger than the sum of its proper divisors (342479).

2541472621 is an equidigital number, since it uses as much as digits as its factorization.

2541472621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342478.

The product of its digits is 26880, while the sum is 34.

The square root of 2541472621 is about 50413.0203518893. The cubic root of 2541472621 is about 1364.6726208849.

The spelling of 2541472621 in words is "two billion, five hundred forty-one million, four hundred seventy-two thousand, six hundred twenty-one".