250240330133 has 4 divisors (see below), whose sum is σ = 250265955660. Its totient is φ = 250214704608.

The previous prime is 250240330063. The next prime is 250240330141. The reversal of 250240330133 is 331033042052.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48381521764 + 201858808369 = 219958^2 + 449287^2 .

It is a cyclic number.

It is not a de Polignac number, because 250240330133 - 2¹⁸ = 250240067989 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 (250240330163) 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, 12798110 + ... + 12817647.

It is an arithmetic number, because the mean of its divisors is an integer number (62566488915).

Almost surely, 2^250240330133 is an apocalyptic number.

It is an amenable number.

250240330133 is a deficient number, since it is larger than the sum of its proper divisors (25625527).

250240330133 is an equidigital number, since it uses as much as digits as its factorization.

250240330133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25625526.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 250240330133 its reverse (331033042052), we get a palindrome (581273372185).

The spelling of 250240330133 in words is "two hundred fifty billion, two hundred forty million, three hundred thirty thousand, one hundred thirty-three".