25002545 has 8 divisors (see below), whose sum is σ = 30129000. Its totient is φ = 19918080.

The previous prime is 25002533. The next prime is 25002547. The reversal of 25002545 is 54520052.

It can be written as a sum of positive squares in 4 ways, for example, as 519841 + 24482704 = 721^2 + 4948^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25002545 - 2¹⁶ = 24937009 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25002545.

It is not an unprimeable number, because it can be changed into a prime (25002547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9170 + ... + 11579.

It is an arithmetic number, because the mean of its divisors is an integer number (3766125).

Almost surely, 2^25002545 is an apocalyptic number.

It is an amenable number.

25002545 is a deficient number, since it is larger than the sum of its proper divisors (5126455).

25002545 is a wasteful number, since it uses less digits than its factorization.

25002545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20995.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 25002545 is about 5000.2544935233. The cubic root of 25002545 is about 292.4116956515.

Adding to 25002545 its reverse (54520052), we get a palindrome (79522597).

The spelling of 25002545 in words is "twenty-five million, two thousand, five hundred forty-five".