425432281 has 2 divisors, whose sum is σ = 425432282. Its totient is φ = 425432280.

The previous prime is 425432243. The next prime is 425432299. The reversal of 425432281 is 182234524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231526656 + 193905625 = 15216^2 + 13925^2 .

It is a cyclic number.

It is not a de Polignac number, because 425432281 - 2¹⁷ = 425301209 is a prime.

It is a super-2 number, since 2×425432281² = 361985251433725922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (425432221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212716140 + 212716141.

It is an arithmetic number, because the mean of its divisors is an integer number (212716141).

Almost surely, 2^425432281 is an apocalyptic number.

It is an amenable number.

425432281 is a deficient number, since it is larger than the sum of its proper divisors (1).

425432281 is an equidigital number, since it uses as much as digits as its factorization.

425432281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 31.

The square root of 425432281 is about 20626.0098177035. The cubic root of 425432281 is about 752.1021209822.

The spelling of 425432281 in words is "four hundred twenty-five million, four hundred thirty-two thousand, two hundred eighty-one".