2564473414 has 4 divisors (see below), whose sum is σ = 3846710124. Its totient is φ = 1282236706.

The previous prime is 2564473381. The next prime is 2564473421. The reversal of 2564473414 is 4143744652.

It is a happy number.

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

It is a super-2 number, since 2×2564473414² = 13153047782225630792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641118352 + ... + 641118355.

It is an arithmetic number, because the mean of its divisors is an integer number (961677531).

Almost surely, 2^2564473414 is an apocalyptic number.

2564473414 is a deficient number, since it is larger than the sum of its proper divisors (1282236710).

2564473414 is a wasteful number, since it uses less digits than its factorization.

2564473414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282236709.

The product of its digits is 322560, while the sum is 40.

The square root of 2564473414 is about 50640.6300711198. The cubic root of 2564473414 is about 1368.7771093259. Note that the first 3 decimals are identical.

The spelling of 2564473414 in words is "two billion, five hundred sixty-four million, four hundred seventy-three thousand, four hundred fourteen".