2625605401 has 2 divisors, whose sum is σ = 2625605402. Its totient is φ = 2625605400.

The previous prime is 2625605399. The next prime is 2625605431. The reversal of 2625605401 is 1045065262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2578202176 + 47403225 = 50776^2 + 6885^2 .

It is a cyclic number.

It is not a de Polignac number, because 2625605401 - 2¹ = 2625605399 is a prime.

Together with 2625605399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2625605431) 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, 1312802700 + 1312802701.

It is an arithmetic number, because the mean of its divisors is an integer number (1312802701).

Almost surely, 2^2625605401 is an apocalyptic number.

It is an amenable number.

2625605401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2625605401 is an equidigital number, since it uses as much as digits as its factorization.

2625605401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 2625605401 is about 51240.6615979927. The cubic root of 2625605401 is about 1379.5681280044.

The spelling of 2625605401 in words is "two billion, six hundred twenty-five million, six hundred five thousand, four hundred one".