601025641 has 2 divisors, whose sum is σ = 601025642. Its totient is φ = 601025640.

The previous prime is 601025639. The next prime is 601025647. The reversal of 601025641 is 146520106.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 547794025 + 53231616 = 23405^2 + 7296^2 .

It is a cyclic number.

It is not a de Polignac number, because 601025641 - 2¹ = 601025639 is a prime.

It is a super-2 number, since 2×601025641² = 722463642278921762, which contains 22 as substring.

Together with 601025639, it forms a pair of twin primes.

601025641 is a modest number, since divided by 25641 gives 601 as remainder.

It is equal to p_31375600 and since 601025641 and 31375600 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (601025647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300512820 + 300512821.

It is an arithmetic number, because the mean of its divisors is an integer number (300512821).

Almost surely, 2^601025641 is an apocalyptic number.

It is an amenable number.

601025641 is a deficient number, since it is larger than the sum of its proper divisors (1).

601025641 is an equidigital number, since it uses as much as digits as its factorization.

601025641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 601025641 is about 24515.8242977877. The cubic root of 601025641 is about 843.9129801232.

Adding to 601025641 its reverse (146520106), we get a palindrome (747545747).

The spelling of 601025641 in words is "six hundred one million, twenty-five thousand, six hundred forty-one".