64965554 has 4 divisors (see below), whose sum is σ = 97448334. Its totient is φ = 32482776.

The previous prime is 64965533. The next prime is 64965557. The reversal of 64965554 is 45556946.

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

It can be written as a sum of positive squares in only one way, i.e., 50027329 + 14938225 = 7073^2 + 3865^2 .

It is not an unprimeable number, because it can be changed into a prime (64965557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16241387 + ... + 16241390.

Almost surely, 2^64965554 is an apocalyptic number.

64965554 is a deficient number, since it is larger than the sum of its proper divisors (32482780).

64965554 is a wasteful number, since it uses less digits than its factorization.

64965554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32482779.

The product of its digits is 648000, while the sum is 44.

The square root of 64965554 is about 8060.1212149694. The cubic root of 64965554 is about 402.0015387349.

The spelling of 64965554 in words is "sixty-four million, nine hundred sixty-five thousand, five hundred fifty-four".