13525240425 has 48 divisors (see below), whose sum is σ = 23171850240. Its totient is φ = 6956389440.

The previous prime is 13525240411. The next prime is 13525240451. The reversal of 13525240425 is 52404252531.

It is a happy number.

It is not a de Polignac number, because 13525240425 - 2⁹ = 13525239913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 228232 + ... + 281318.

It is an arithmetic number, because the mean of its divisors is an integer number (482746880).

Almost surely, 2^13525240425 is an apocalyptic number.

13525240425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13525240425 is a deficient number, since it is larger than the sum of its proper divisors (9646609815).

13525240425 is a wasteful number, since it uses less digits than its factorization.

13525240425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53222 (or 53217 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 13525240425 its reverse (52404252531), we get a palindrome (65929492956).

The spelling of 13525240425 in words is "thirteen billion, five hundred twenty-five million, two hundred forty thousand, four hundred twenty-five".