250513973 has 2 divisors, whose sum is σ = 250513974. Its totient is φ = 250513972.

The previous prime is 250513951. The next prime is 250513979. The reversal of 250513973 is 379315052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243422404 + 7091569 = 15602^2 + 2663^2 .

It is a cyclic number.

It is not a de Polignac number, because 250513973 - 2⁶ = 250513909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250513979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125256986 + 125256987.

It is an arithmetic number, because the mean of its divisors is an integer number (125256987).

Almost surely, 2^250513973 is an apocalyptic number.

It is an amenable number.

250513973 is a deficient number, since it is larger than the sum of its proper divisors (1).

250513973 is an equidigital number, since it uses as much as digits as its factorization.

250513973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 250513973 is about 15827.6332090430. The cubic root of 250513973 is about 630.3919397028.

The spelling of 250513973 in words is "two hundred fifty million, five hundred thirteen thousand, nine hundred seventy-three".