64554497 has 8 divisors (see below), whose sum is σ = 73831296. Its totient is φ = 55291392.

The previous prime is 64554473. The next prime is 64554499. The reversal of 64554497 is 79445546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64554497 - 2¹⁰ = 64553473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64554499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10433 + ... + 15425.

It is an arithmetic number, because the mean of its divisors is an integer number (9228912).

Almost surely, 2^64554497 is an apocalyptic number.

It is an amenable number.

64554497 is a deficient number, since it is larger than the sum of its proper divisors (9276799).

64554497 is a wasteful number, since it uses less digits than its factorization.

64554497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847.

The product of its digits is 604800, while the sum is 44.

The square root of 64554497 is about 8034.5813207659. The cubic root of 64554497 is about 401.1518818199.

The spelling of 64554497 in words is "sixty-four million, five hundred fifty-four thousand, four hundred ninety-seven".