250474997 has 2 divisors, whose sum is σ = 250474998. Its totient is φ = 250474996.

The previous prime is 250474981. The next prime is 250474999. The reversal of 250474997 is 799474052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144817156 + 105657841 = 12034^2 + 10279^2 .

It is a cyclic number.

It is not a de Polignac number, because 250474997 - 2⁴ = 250474981 is a prime.

Together with 250474999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250474999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125237498 + 125237499.

It is an arithmetic number, because the mean of its divisors is an integer number (125237499).

Almost surely, 2^250474997 is an apocalyptic number.

It is an amenable number.

250474997 is a deficient number, since it is larger than the sum of its proper divisors (1).

250474997 is an equidigital number, since it uses as much as digits as its factorization.

250474997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 250474997 is about 15826.4018968305. The cubic root of 250474997 is about 630.3592450121.

The spelling of 250474997 in words is "two hundred fifty million, four hundred seventy-four thousand, nine hundred ninety-seven".