601625551 has 2 divisors, whose sum is σ = 601625552. Its totient is φ = 601625550.

The previous prime is 601625533. The next prime is 601625567. The reversal of 601625551 is 155526106.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-601625551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601325551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300812775 + 300812776.

It is an arithmetic number, because the mean of its divisors is an integer number (300812776).

Almost surely, 2^601625551 is an apocalyptic number.

601625551 is a deficient number, since it is larger than the sum of its proper divisors (1).

601625551 is an equidigital number, since it uses as much as digits as its factorization.

601625551 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 31.

The square root of 601625551 is about 24528.0564048601. The cubic root of 601625551 is about 844.1936689162.

It can be divided in two parts, 601625 and 551, that added together give a square (602176 = 776²).

The spelling of 601625551 in words is "six hundred one million, six hundred twenty-five thousand, five hundred fifty-one".