250021061 has 2 divisors, whose sum is σ = 250021062. Its totient is φ = 250021060.

The previous prime is 250021021. The next prime is 250021069. The reversal of 250021061 is 160120052.

250021061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228584161 + 21436900 = 15119^2 + 4630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250021061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250021069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125010530 + 125010531.

It is an arithmetic number, because the mean of its divisors is an integer number (125010531).

Almost surely, 2^250021061 is an apocalyptic number.

It is an amenable number.

250021061 is a deficient number, since it is larger than the sum of its proper divisors (1).

250021061 is an equidigital number, since it uses as much as digits as its factorization.

250021061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 250021061 is about 15812.0542941137. The cubic root of 250021061 is about 629.9782145822.

The spelling of 250021061 in words is "two hundred fifty million, twenty-one thousand, sixty-one".