2564513054 has 4 divisors (see below), whose sum is σ = 3846769584. Its totient is φ = 1282256526.

The previous prime is 2564513051. The next prime is 2564513093. The reversal of 2564513054 is 4503154652.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564513051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641128262 + ... + 641128265.

It is an arithmetic number, because the mean of its divisors is an integer number (961692396).

Almost surely, 2^2564513054 is an apocalyptic number.

2564513054 is a deficient number, since it is larger than the sum of its proper divisors (1282256530).

2564513054 is a wasteful number, since it uses less digits than its factorization.

2564513054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282256529.

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 2564513054 is about 50641.0214549430. The cubic root of 2564513054 is about 1368.7841618518.

The spelling of 2564513054 in words is "two billion, five hundred sixty-four million, five hundred thirteen thousand, fifty-four".