320855425 has 48 divisors (see below), whose sum is σ = 456113664. Its totient is φ = 221760000.

The previous prime is 320855407. The next prime is 320855441. The reversal of 320855425 is 524558023.

320855425 = T₁₀ + T₁₁ + ... + T₁₂₄₃.

It is not a de Polignac number, because 320855425 - 2⁹ = 320854913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 519717 + ... + 520333.

It is an arithmetic number, because the mean of its divisors is an integer number (9502368).

Almost surely, 2^320855425 is an apocalyptic number.

It is an amenable number.

320855425 is a deficient number, since it is larger than the sum of its proper divisors (135258239).

320855425 is a wasteful number, since it uses less digits than its factorization.

320855425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 320855425 is about 17912.4377179657. The cubic root of 320855425 is about 684.5993181255.

The spelling of 320855425 in words is "three hundred twenty million, eight hundred fifty-five thousand, four hundred twenty-five".