25069435245 has 24 divisors (see below), whose sum is σ = 43517926296. Its totient is φ = 13350599808.

The previous prime is 25069435241. The next prime is 25069435249. The reversal of 25069435245 is 54253496052.

25069435245 is a `hidden beast` number, since 2 + 506 + 94 + 3 + 52 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (25069435241) and next prime (25069435249).

It can be written as a sum of positive squares in 4 ways, for example, as 7640682921 + 17428752324 = 87411^2 + 132018^2 .

It is not a de Polignac number, because 25069435245 - 2² = 25069435241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 25069435245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25069435241) 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, 380982 + ... + 441911.

It is an arithmetic number, because the mean of its divisors is an integer number (1813246929).

Almost surely, 2^25069435245 is an apocalyptic number.

It is an amenable number.

25069435245 is a deficient number, since it is larger than the sum of its proper divisors (18448491051).

25069435245 is a wasteful number, since it uses less digits than its factorization.

25069435245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823581 (or 823578 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 25069435245 in words is "twenty-five billion, sixty-nine million, four hundred thirty-five thousand, two hundred forty-five".