425516021603 has 2 divisors, whose sum is σ = 425516021604. Its totient is φ = 425516021602.

The previous prime is 425516021563. The next prime is 425516021657. The reversal of 425516021603 is 306120615524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425516021603 - 2⁸ = 425516021347 is a prime.

It is not a weakly prime, because it can be changed into another prime (425516021683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212758010801 + 212758010802.

It is an arithmetic number, because the mean of its divisors is an integer number (212758010802).

Almost surely, 2^425516021603 is an apocalyptic number.

425516021603 is a deficient number, since it is larger than the sum of its proper divisors (1).

425516021603 is an equidigital number, since it uses as much as digits as its factorization.

425516021603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 425516021603 in words is "four hundred twenty-five billion, five hundred sixteen million, twenty-one thousand, six hundred three".