13525422420 has 48 divisors (see below), whose sum is σ = 38036597760. Its totient is φ = 3591025536.

The previous prime is 13525422367. The next prime is 13525422431. The reversal of 13525422420 is 2422452531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478452 + ... + 505931.

It is an arithmetic number, because the mean of its divisors is an integer number (792429120).

Almost surely, 2^13525422420 is an apocalyptic number.

13525422420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13525422420 is an abundant number, since it is smaller than the sum of its proper divisors (24511175340).

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

13525422420 is a wasteful number, since it uses less digits than its factorization.

13525422420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984624 (or 984622 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 13525422420 its reverse (2422452531), we get a palindrome (15947874951).

The spelling of 13525422420 in words is "thirteen billion, five hundred twenty-five million, four hundred twenty-two thousand, four hundred twenty".