25001454525 has 24 divisors (see below), whose sum is σ = 42297039840. Its totient is φ = 13024011840.

The previous prime is 25001454487. The next prime is 25001454529. The reversal of 25001454525 is 52545410052.

It is not a de Polignac number, because 25001454525 - 2¹⁴ = 25001438141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25001454529) 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, 3872970 + ... + 3879419.

It is an arithmetic number, because the mean of its divisors is an integer number (1762376660).

Almost surely, 2^25001454525 is an apocalyptic number.

25001454525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25001454525 is a deficient number, since it is larger than the sum of its proper divisors (17295585315).

25001454525 is a wasteful number, since it uses less digits than its factorization.

25001454525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7752445 (or 7752440 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 25001454525 its reverse (52545410052), we get a palindrome (77546864577).

The spelling of 25001454525 in words is "twenty-five billion, one million, four hundred fifty-four thousand, five hundred twenty-five".