325153646541551 has 4 divisors (see below), whose sum is σ = 325858968985704. Its totient is φ = 324448324097400.

The previous prime is 325153646541539. The next prime is 325153646541557. The reversal of 325153646541551 is 155145646351523.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 325153646541551 - 2²⁶ = 325153579432687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325153646541557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352661221385 + ... + 352661222306.

It is an arithmetic number, because the mean of its divisors is an integer number (81464742246426).

Almost surely, 2^{325153646541551} is an apocalyptic number.

325153646541551 is a deficient number, since it is larger than the sum of its proper divisors (705322444153).

325153646541551 is an equidigital number, since it uses as much as digits as its factorization.

325153646541551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705322444152.

The product of its digits is 32400000, while the sum is 56.

The spelling of 325153646541551 in words is "three hundred twenty-five trillion, one hundred fifty-three billion, six hundred forty-six million, five hundred forty-one thousand, five hundred fifty-one".