63674251 has 2 divisors, whose sum is σ = 63674252. Its totient is φ = 63674250.

The previous prime is 63674209. The next prime is 63674269. The reversal of 63674251 is 15247636.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63674251 - 2⁷ = 63674123 is a prime.

It is a super-2 number, since 2×63674251² = 8108820480822002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63672251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31837125 + 31837126.

It is an arithmetic number, because the mean of its divisors is an integer number (31837126).

Almost surely, 2^63674251 is an apocalyptic number.

63674251 is a deficient number, since it is larger than the sum of its proper divisors (1).

63674251 is an equidigital number, since it uses as much as digits as its factorization.

63674251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 63674251 is about 7979.6147150097. The cubic root of 63674251 is about 399.3202015898.

The spelling of 63674251 in words is "sixty-three million, six hundred seventy-four thousand, two hundred fifty-one".