24215522551242 has 128 divisors (see below), whose sum is σ = 54365684060160. Its totient is φ = 7126058280960.

The previous prime is 24215522551211. The next prime is 24215522551247.

24215522551242 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 24215522551194 and 24215522551203.

It is not an unprimeable number, because it can be changed into a prime (24215522551247) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3247350778 + ... + 3247358234.

It is an arithmetic number, because the mean of its divisors is an integer number (424731906720).

Almost surely, 2^{24215522551242} is an apocalyptic number.

24215522551242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 24215522551242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27182842030080).

24215522551242 is an abundant number, since it is smaller than the sum of its proper divisors (30150161508918).

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

24215522551242 is a wasteful number, since it uses less digits than its factorization.

24215522551242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9876.

The product of its digits is 640000, while the sum is 42.

It can be divided in two parts, 2421552 and 2551242, that added together give a palindrome (4972794).

The spelling of 24215522551242 in words is "twenty-four trillion, two hundred fifteen billion, five hundred twenty-two million, five hundred fifty-one thousand, two hundred forty-two".