15025020420 has 48 divisors (see below), whose sum is σ = 42076899648. Its totient is φ = 4006020480.

The previous prime is 15025020391. The next prime is 15025020443. The reversal of 15025020420 is 2402052051.

It is a happy 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, 436230 + ... + 469410.

It is an arithmetic number, because the mean of its divisors is an integer number (876602076).

Almost surely, 2^15025020420 is an apocalyptic number.

15025020420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15025020420 is an abundant number, since it is smaller than the sum of its proper divisors (27051879228).

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

15025020420 is a wasteful number, since it uses less digits than its factorization.

15025020420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40740 (or 40738 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 15025020420 its reverse (2402052051), we get a palindrome (17427072471).

The spelling of 15025020420 in words is "fifteen billion, twenty-five million, twenty thousand, four hundred twenty".