64574216025 has 24 divisors (see below), whose sum is σ = 116468405664. Its totient is φ = 31308710400.

The previous prime is 64574216017. The next prime is 64574216033. The reversal of 64574216025 is 52061247546.

It is an interprime number because it is at equal distance from previous prime (64574216017) and next prime (64574216033).

It is not a de Polignac number, because 64574216025 - 2³ = 64574216017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39135064 + ... + 39136713.

It is an arithmetic number, because the mean of its divisors is an integer number (4852850236).

Almost surely, 2^64574216025 is an apocalyptic number.

It is an amenable number.

64574216025 is a deficient number, since it is larger than the sum of its proper divisors (51894189639).

64574216025 is a wasteful number, since it uses less digits than its factorization.

64574216025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78271801 (or 78271796 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 64574216025 in words is "sixty-four billion, five hundred seventy-four million, two hundred sixteen thousand, twenty-five".