64554428 has 12 divisors (see below), whose sum is σ = 113140440. Its totient is φ = 32228592.

The previous prime is 64554421. The next prime is 64554443. The reversal of 64554428 is 82445546.

It is a junction number, because it is equal to n+sod(n) for n = 64554391 and 64554400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64554421) 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, 9083 + ... + 14546.

It is an arithmetic number, because the mean of its divisors is an integer number (9428370).

Almost surely, 2^64554428 is an apocalyptic number.

It is an amenable number.

64554428 is a deficient number, since it is larger than the sum of its proper divisors (48586012).

64554428 is a wasteful number, since it uses less digits than its factorization.

64554428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24316 (or 24314 counting only the distinct ones).

The product of its digits is 153600, while the sum is 38.

The square root of 64554428 is about 8034.5770268260. The cubic root of 64554428 is about 401.1517388942.

The spelling of 64554428 in words is "sixty-four million, five hundred fifty-four thousand, four hundred twenty-eight".