15525200240 has 60 divisors (see below), whose sum is σ = 39675892872. Its totient is φ = 5645523840.

The previous prime is 15525200239. The next prime is 15525200279. The reversal of 15525200240 is 4200252551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 792242 + ... + 811601.

Almost surely, 2^15525200240 is an apocalyptic number.

15525200240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15525200240 is an abundant number, since it is smaller than the sum of its proper divisors (24150692632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15525200240 is a wasteful number, since it uses less digits than its factorization.

15525200240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603878 (or 1603861 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 15525200240 its reverse (4200252551), we get a palindrome (19725452791).

The spelling of 15525200240 in words is "fifteen billion, five hundred twenty-five million, two hundred thousand, two hundred forty".