250342545421 has 4 divisors (see below), whose sum is σ = 253155383100. Its totient is φ = 247529707744.

The previous prime is 250342545419. The next prime is 250342545433. The reversal of 250342545421 is 124545243052.

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 51349826025 + 198992719396 = 226605^2 + 446086^2 .

It is a cyclic number.

It is not a de Polignac number, because 250342545421 - 2¹ = 250342545419 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 (250342545451) 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, 1406418706 + ... + 1406418883.

It is an arithmetic number, because the mean of its divisors is an integer number (63288845775).

Almost surely, 2^250342545421 is an apocalyptic number.

It is an amenable number.

250342545421 is a deficient number, since it is larger than the sum of its proper divisors (2812837679).

250342545421 is an equidigital number, since it uses as much as digits as its factorization.

250342545421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812837678.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 250342545421 its reverse (124545243052), we get a palindrome (374887788473).

The spelling of 250342545421 in words is "two hundred fifty billion, three hundred forty-two million, five hundred forty-five thousand, four hundred twenty-one".