15212355048 has 96 divisors (see below), whose sum is σ = 45010648800. Its totient is φ = 4603132800.

The previous prime is 15212355031. The next prime is 15212355049. The reversal of 15212355048 is 84055321251.

15212355048 is a `hidden beast` number, since 1 + 52 + 12 + 3 + 550 + 48 = 666.

It is a super-2 number, since 2×15212355048² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (15212355049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 547983 + ... + 575073.

It is an arithmetic number, because the mean of its divisors is an integer number (468860925).

Almost surely, 2^15212355048 is an apocalyptic number.

15212355048 is a gapful number since it is divisible by the number (18) 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 15212355048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22505324400).

15212355048 is an abundant number, since it is smaller than the sum of its proper divisors (29798293752).

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

15212355048 is a wasteful number, since it uses less digits than its factorization.

15212355048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27823 (or 27816 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 15212355048 its reverse (84055321251), we get a palindrome (99267676299).

The spelling of 15212355048 in words is "fifteen billion, two hundred twelve million, three hundred fifty-five thousand, forty-eight".