662646425 has 24 divisors (see below), whose sum is σ = 947707200. Its totient is φ = 450204480.

The previous prime is 662646409. The next prime is 662646449. The reversal of 662646425 is 524646266.

It is not a de Polignac number, because 662646425 - 2⁴ = 662646409 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, 1706 + ... + 36444.

It is an arithmetic number, because the mean of its divisors is an integer number (39487800).

Almost surely, 2^662646425 is an apocalyptic number.

It is an amenable number.

662646425 is a deficient number, since it is larger than the sum of its proper divisors (285060775).

662646425 is a wasteful number, since it uses less digits than its factorization.

662646425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34865 (or 34860 counting only the distinct ones).

The product of its digits is 414720, while the sum is 41.

The square root of 662646425 is about 25741.9196059657. The cubic root of 662646425 is about 871.8209207945.

The spelling of 662646425 in words is "six hundred sixty-two million, six hundred forty-six thousand, four hundred twenty-five".