2565148605 has 32 divisors (see below), whose sum is σ = 4178718720. Its totient is φ = 1343307840.

The previous prime is 2565148601. The next prime is 2565148609. The reversal of 2565148605 is 5068415652.

It is an interprime number because it is at equal distance from previous prime (2565148601) and next prime (2565148609).

It is not a de Polignac number, because 2565148605 - 2² = 2565148601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565148601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1400040 + ... + 1401870.

It is an arithmetic number, because the mean of its divisors is an integer number (130584960).

Almost surely, 2^2565148605 is an apocalyptic number.

It is an amenable number.

2565148605 is a deficient number, since it is larger than the sum of its proper divisors (1613570115).

2565148605 is a wasteful number, since it uses less digits than its factorization.

2565148605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481.

The product of its (nonzero) digits is 288000, while the sum is 42.

The square root of 2565148605 is about 50647.2961272366. The cubic root of 2565148605 is about 1368.8972255889.

The spelling of 2565148605 in words is "two billion, five hundred sixty-five million, one hundred forty-eight thousand, six hundred five".