64054405 has 4 divisors (see below), whose sum is σ = 76865292. Its totient is φ = 51243520.

The previous prime is 64054381. The next prime is 64054421. The reversal of 64054405 is 50445046.

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 45400644 + 18653761 = 6738^2 + 4319^2 .

It is not a de Polignac number, because 64054405 - 2⁹ = 64053893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6405436 + ... + 6405445.

It is an arithmetic number, because the mean of its divisors is an integer number (19216323).

Almost surely, 2^64054405 is an apocalyptic number.

It is an amenable number.

64054405 is a deficient number, since it is larger than the sum of its proper divisors (12810887).

64054405 is a wasteful number, since it uses less digits than its factorization.

64054405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12810886.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 64054405 is about 8003.3995901742. The cubic root of 64054405 is about 400.1133116481.

The spelling of 64054405 in words is "sixty-four million, fifty-four thousand, four hundred five".