425552623 has 2 divisors, whose sum is σ = 425552624. Its totient is φ = 425552622.

The previous prime is 425552599. The next prime is 425552627. The reversal of 425552623 is 326255524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425552623 - 2¹⁷ = 425421551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425552627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212776311 + 212776312.

It is an arithmetic number, because the mean of its divisors is an integer number (212776312).

Almost surely, 2^425552623 is an apocalyptic number.

425552623 is a deficient number, since it is larger than the sum of its proper divisors (1).

425552623 is an equidigital number, since it uses as much as digits as its factorization.

425552623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 34.

The square root of 425552623 is about 20628.9268504205. The cubic root of 425552623 is about 752.1730299883.

The spelling of 425552623 in words is "four hundred twenty-five million, five hundred fifty-two thousand, six hundred twenty-three".