325623553 has 4 divisors (see below), whose sum is σ = 325710000. Its totient is φ = 325537108.

The previous prime is 325623547. The next prime is 325623637. The reversal of 325623553 is 355326523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355326523 = 379 ⋅937537.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325623553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325623503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37303 + ... + 45196.

It is an arithmetic number, because the mean of its divisors is an integer number (81427500).

Almost surely, 2^325623553 is an apocalyptic number.

It is an amenable number.

325623553 is a deficient number, since it is larger than the sum of its proper divisors (86447).

325623553 is an equidigital number, since it uses as much as digits as its factorization.

325623553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86446.

The product of its digits is 81000, while the sum is 34.

The square root of 325623553 is about 18045.0423385483. The cubic root of 325623553 is about 687.9738594550.

The spelling of 325623553 in words is "three hundred twenty-five million, six hundred twenty-three thousand, five hundred fifty-three".