53250603581 has 4 divisors (see below), whose sum is σ = 60857832672. Its totient is φ = 45643374492.

The previous prime is 53250603563. The next prime is 53250603673. The reversal of 53250603581 is 18530605235.

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.

It is a cyclic number.

It is not a de Polignac number, because 53250603581 - 2²⁶ = 53183494717 is a prime.

It is a super-2 number, since 2×53250603581² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53250603281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3803614535 + ... + 3803614548.

It is an arithmetic number, because the mean of its divisors is an integer number (15214458168).

Almost surely, 2^53250603581 is an apocalyptic number.

It is an amenable number.

53250603581 is a deficient number, since it is larger than the sum of its proper divisors (7607229091).

53250603581 is an equidigital number, since it uses as much as digits as its factorization.

53250603581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7607229090.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 53250603581 in words is "fifty-three billion, two hundred fifty million, six hundred three thousand, five hundred eighty-one".