252175420641 has 48 divisors (see below), whose sum is σ = 363757286592. Its totient is φ = 154829675520.

The previous prime is 252175420571. The next prime is 252175420657. The reversal of 252175420641 is 146024571252.

It is not a de Polignac number, because 252175420641 - 2⁹ = 252175420129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252175420641.

It is not an unprimeable number, because it can be changed into a prime (252175420741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63888430 + ... + 63892376.

It is an arithmetic number, because the mean of its divisors is an integer number (7578276804).

Almost surely, 2^252175420641 is an apocalyptic number.

It is an amenable number.

252175420641 is a deficient number, since it is larger than the sum of its proper divisors (111581865951).

252175420641 is a wasteful number, since it uses less digits than its factorization.

252175420641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302 (or 4171 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

Adding to 252175420641 its reverse (146024571252), we get a palindrome (398199991893).

The spelling of 252175420641 in words is "two hundred fifty-two billion, one hundred seventy-five million, four hundred twenty thousand, six hundred forty-one".