250628529606421 has 4 divisors (see below), whose sum is σ = 253212328880812. Its totient is φ = 248044730332032.

The previous prime is 250628529606349. The next prime is 250628529606479. The reversal of 250628529606421 is 124606925826052.

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 57417445404900 + 193211084201521 = 7577430^2 + 13900039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250628529606421 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 (250628559606421) 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, 1291899637050 + ... + 1291899637243.

It is an arithmetic number, because the mean of its divisors is an integer number (63303082220203).

Almost surely, 2^{250628529606421} is an apocalyptic number.

It is an amenable number.

250628529606421 is a deficient number, since it is larger than the sum of its proper divisors (2583799274391).

250628529606421 is an equidigital number, since it uses as much as digits as its factorization.

250628529606421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583799274390.

The product of its (nonzero) digits is 24883200, while the sum is 58.

The spelling of 250628529606421 in words is "two hundred fifty trillion, six hundred twenty-eight billion, five hundred twenty-nine million, six hundred six thousand, four hundred twenty-one".