25055305525 has 12 divisors (see below), whose sum is σ = 31070672064. Its totient is φ = 20042894000.

The previous prime is 25055305523. The next prime is 25055305603. The reversal of 25055305525 is 52550355052.

It is a happy number.

It is not a de Polignac number, because 25055305525 - 2¹ = 25055305523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25055305523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 528030 + ... + 573520.

It is an arithmetic number, because the mean of its divisors is an integer number (2589222672).

Almost surely, 2^25055305525 is an apocalyptic number.

25055305525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25055305525 is a deficient number, since it is larger than the sum of its proper divisors (6015366539).

25055305525 is a wasteful number, since it uses less digits than its factorization.

25055305525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67532 (or 67527 counting only the distinct ones).

The product of its (nonzero) digits is 187500, while the sum is 37.

The spelling of 25055305525 in words is "twenty-five billion, fifty-five million, three hundred five thousand, five hundred twenty-five".