425901551 has 2 divisors, whose sum is σ = 425901552. Its totient is φ = 425901550.

The previous prime is 425901533. The next prime is 425901571. The reversal of 425901551 is 155109524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425901551 - 2¹⁸ = 425639407 is a prime.

It is a super-2 number, since 2×425901551² = 362784262288411202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425901521) 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, 212950775 + 212950776.

It is an arithmetic number, because the mean of its divisors is an integer number (212950776).

Almost surely, 2^425901551 is an apocalyptic number.

425901551 is a deficient number, since it is larger than the sum of its proper divisors (1).

425901551 is an equidigital number, since it uses as much as digits as its factorization.

425901551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 425901551 is about 20637.3823679264. The cubic root of 425901551 is about 752.3785529697.

The spelling of 425901551 in words is "four hundred twenty-five million, nine hundred one thousand, five hundred fifty-one".