2562464521 has 4 divisors (see below), whose sum is σ = 2562719044. Its totient is φ = 2562210000.

The previous prime is 2562464491. The next prime is 2562464539. The reversal of 2562464521 is 1254642652.

It is a happy number.

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 1646736400 + 915728121 = 40580^2 + 30261^2 .

It is a cyclic number.

It is not a de Polignac number, because 2562464521 - 2¹⁹ = 2561940233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2562464321) 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, 111510 + ... + 132511.

It is an arithmetic number, because the mean of its divisors is an integer number (640679761).

Almost surely, 2^2562464521 is an apocalyptic number.

It is an amenable number.

2562464521 is a deficient number, since it is larger than the sum of its proper divisors (254523).

2562464521 is a wasteful number, since it uses less digits than its factorization.

2562464521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254522.

The product of its digits is 115200, while the sum is 37.

The square root of 2562464521 is about 50620.7913904949. The cubic root of 2562464521 is about 1368.4196031735.

The spelling of 2562464521 in words is "two billion, five hundred sixty-two million, four hundred sixty-four thousand, five hundred twenty-one".