15055042420 has 96 divisors (see below), whose sum is σ = 34957319040. Its totient is φ = 5400637440.

The previous prime is 15055042391. The next prime is 15055042441. The reversal of 15055042420 is 2424055051.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15408972 + ... + 15409948.

It is an arithmetic number, because the mean of its divisors is an integer number (364138740).

Almost surely, 2^15055042420 is an apocalyptic number.

15055042420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15055042420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17478659520).

15055042420 is an abundant number, since it is smaller than the sum of its proper divisors (19902276620).

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

15055042420 is a wasteful number, since it uses less digits than its factorization.

15055042420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1871 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 15055042420 its reverse (2424055051), we get a palindrome (17479097471).

The spelling of 15055042420 in words is "fifteen billion, fifty-five million, forty-two thousand, four hundred twenty".