2545476121 has 4 divisors (see below), whose sum is σ = 2576144592. Its totient is φ = 2514807652.

The previous prime is 2545476119. The next prime is 2545476169. The reversal of 2545476121 is 1216745452.

2545476121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2545476121 - 2¹ = 2545476119 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545416121) 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, 15334111 + ... + 15334276.

It is an arithmetic number, because the mean of its divisors is an integer number (644036148).

Almost surely, 2^2545476121 is an apocalyptic number.

It is an amenable number.

2545476121 is a deficient number, since it is larger than the sum of its proper divisors (30668471).

2545476121 is an equidigital number, since it uses as much as digits as its factorization.

2545476121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30668470.

The product of its digits is 67200, while the sum is 37.

The square root of 2545476121 is about 50452.7117308872. The cubic root of 2545476121 is about 1365.3888198966.

The spelling of 2545476121 in words is "two billion, five hundred forty-five million, four hundred seventy-six thousand, one hundred twenty-one".