64254549 has 4 divisors (see below), whose sum is σ = 85672736. Its totient is φ = 42836364.

The previous prime is 64254493. The next prime is 64254559. The reversal of 64254549 is 94545246.

It is a happy number.

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 not a de Polignac number, because 64254549 - 2⁹ = 64254037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64254559) 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, 10709089 + ... + 10709094.

It is an arithmetic number, because the mean of its divisors is an integer number (21418184).

Almost surely, 2^64254549 is an apocalyptic number.

It is an amenable number.

64254549 is a deficient number, since it is larger than the sum of its proper divisors (21418187).

64254549 is a wasteful number, since it uses less digits than its factorization.

64254549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21418186.

The product of its digits is 172800, while the sum is 39.

The square root of 64254549 is about 8015.8935247420. The cubic root of 64254549 is about 400.5296088932.

The spelling of 64254549 in words is "sixty-four million, two hundred fifty-four thousand, five hundred forty-nine".