64559954 has 4 divisors (see below), whose sum is σ = 96839934. Its totient is φ = 32279976.

The previous prime is 64559923. The next prime is 64559969. The reversal of 64559954 is 45995546.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45995546 = 2 ⋅22997773.

It can be written as a sum of positive squares in only one way, i.e., 35129329 + 29430625 = 5927^2 + 5425^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64559899 and 64559908.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16139987 + ... + 16139990.

Almost surely, 2^64559954 is an apocalyptic number.

64559954 is a deficient number, since it is larger than the sum of its proper divisors (32279980).

64559954 is a wasteful number, since it uses less digits than its factorization.

64559954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32279979.

The product of its digits is 972000, while the sum is 47.

The square root of 64559954 is about 8034.9209081359. The cubic root of 64559954 is about 401.1631850559.

The spelling of 64559954 in words is "sixty-four million, five hundred fifty-nine thousand, nine hundred fifty-four".