15527225420 has 24 divisors (see below), whose sum is σ = 37265341344. Its totient is φ = 5323620096.

The previous prime is 15527225393. The next prime is 15527225449. The reversal of 15527225420 is 2452272551.

It is a Harshad number since it is a multiple of its sum of digits (35).

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 7 ways as a sum of consecutive naturals, for example, 55454237 + ... + 55454516.

It is an arithmetic number, because the mean of its divisors is an integer number (1552722556).

Almost surely, 2^15527225420 is an apocalyptic number.

15527225420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15527225420 is an abundant number, since it is smaller than the sum of its proper divisors (21738115924).

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

15527225420 is a wasteful number, since it uses less digits than its factorization.

15527225420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110908769 (or 110908767 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 35.

Adding to 15527225420 its reverse (2452272551), we get a palindrome (17979497971).

The spelling of 15527225420 in words is "fifteen billion, five hundred twenty-seven million, two hundred twenty-five thousand, four hundred twenty".