64453425 has 24 divisors (see below), whose sum is σ = 107180640. Its totient is φ = 34176000.

The previous prime is 64453421. The next prime is 64453427. The reversal of 64453425 is 52435446.

It is not a de Polignac number, because 64453425 - 2² = 64453421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64453421) 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 in 23 ways as a sum of consecutive naturals, for example, 11025 + ... + 15825.

It is an arithmetic number, because the mean of its divisors is an integer number (4465860).

Almost surely, 2^64453425 is an apocalyptic number.

It is an amenable number.

64453425 is a deficient number, since it is larger than the sum of its proper divisors (42727215).

64453425 is a wasteful number, since it uses less digits than its factorization.

64453425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993 (or 4988 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

The square root of 64453425 is about 8028.2890456186. The cubic root of 64453425 is about 400.9424133158.

It can be divided in two parts, 6445 and 3425, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 64453425 in words is "sixty-four million, four hundred fifty-three thousand, four hundred twenty-five".