250542641 has 4 divisors (see below), whose sum is σ = 252138612. Its totient is φ = 248946672.

The previous prime is 250542619. The next prime is 250542647. The reversal of 250542641 is 146245052.

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 156375025 + 94167616 = 12505^2 + 9704^2 .

It is a cyclic number.

It is not a de Polignac number, because 250542641 - 2¹⁰ = 250541617 is a prime.

It is a super-2 number, since 2×250542641² = 125543229918509762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250542647) 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, 797750 + ... + 798063.

It is an arithmetic number, because the mean of its divisors is an integer number (63034653).

Almost surely, 2^250542641 is an apocalyptic number.

It is an amenable number.

250542641 is a deficient number, since it is larger than the sum of its proper divisors (1595971).

250542641 is a wasteful number, since it uses less digits than its factorization.

250542641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595970.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 250542641 is about 15828.5388144326. The cubic root of 250542641 is about 630.4159854498.

Adding to 250542641 its reverse (146245052), we get a palindrome (396787693).

The spelling of 250542641 in words is "two hundred fifty million, five hundred forty-two thousand, six hundred forty-one".