2525293645 has 24 divisors (see below), whose sum is σ = 3732468984. Its totient is φ = 1629766656.

The previous prime is 2525293643. The next prime is 2525293657. The reversal of 2525293645 is 5463925252.

It can be written as a sum of positive squares in 4 ways, for example, as 357739396 + 2167554249 = 18914^2 + 46557^2 .

It is not a de Polignac number, because 2525293645 - 2¹ = 2525293643 is a prime.

It is a super-3 number, since 3×2525293645³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525293643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298992 + ... + 307321.

It is an arithmetic number, because the mean of its divisors is an integer number (155519541).

Almost surely, 2^2525293645 is an apocalyptic number.

It is an amenable number.

2525293645 is a deficient number, since it is larger than the sum of its proper divisors (1207175339).

2525293645 is a wasteful number, since it uses less digits than its factorization.

2525293645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606349 (or 606342 counting only the distinct ones).

The product of its digits is 648000, while the sum is 43.

The square root of 2525293645 is about 50252.2998976166. The cubic root of 2525293645 is about 1361.7706257528.

The spelling of 2525293645 in words is "two billion, five hundred twenty-five million, two hundred ninety-three thousand, six hundred forty-five".