325257816 has 64 divisors (see below), whose sum is σ = 888088320. Its totient is φ = 98663040.

The previous prime is 325257799. The next prime is 325257817. The reversal of 325257816 is 618752523.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325257817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14811 + ... + 29493.

It is an arithmetic number, because the mean of its divisors is an integer number (13876380).

Almost surely, 2^325257816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325257816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444044160).

325257816 is an abundant number, since it is smaller than the sum of its proper divisors (562830504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

325257816 is a wasteful number, since it uses less digits than its factorization.

325257816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14776 (or 14772 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 325257816 is about 18034.9054890787. The cubic root of 325257816 is about 687.7161879233.

The spelling of 325257816 in words is "three hundred twenty-five million, two hundred fifty-seven thousand, eight hundred sixteen".