2605162541 has 4 divisors (see below), whose sum is σ = 2644045632. Its totient is φ = 2566279452.

The previous prime is 2605162519. The next prime is 2605162559. The reversal of 2605162541 is 1452615062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1452615062 = 2 ⋅726307531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2605162541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2605162498 and 2605162507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605162741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19441445 + ... + 19441578.

It is an arithmetic number, because the mean of its divisors is an integer number (661011408).

Almost surely, 2^2605162541 is an apocalyptic number.

It is an amenable number.

2605162541 is a deficient number, since it is larger than the sum of its proper divisors (38883091).

2605162541 is an equidigital number, since it uses as much as digits as its factorization.

2605162541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38883090.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2605162541 is about 51040.7929111608. The cubic root of 2605162541 is about 1375.9783742672.

The spelling of 2605162541 in words is "two billion, six hundred five million, one hundred sixty-two thousand, five hundred forty-one".