21362462055 has 48 divisors (see below), whose sum is σ = 42770636064. Its totient is φ = 9748285440.

The previous prime is 21362462053. The next prime is 21362462059. The reversal of 21362462055 is 55026426312.

21362462055 is a `hidden beast` number, since 2 + 1 + 3 + 6 + 24 + 620 + 5 + 5 = 666.

It is not a de Polignac number, because 21362462055 - 2¹ = 21362462053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21362462053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1260894 + ... + 1277723.

It is an arithmetic number, because the mean of its divisors is an integer number (891054918).

Almost surely, 2^21362462055 is an apocalyptic number.

21362462055 is an abundant number, since it is smaller than the sum of its proper divisors (21408174009).

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

21362462055 is a wasteful number, since it uses less digits than its factorization.

21362462055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538656 (or 2538653 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 21362462055 its reverse (55026426312), we get a palindrome (76388888367).

The spelling of 21362462055 in words is "twenty-one billion, three hundred sixty-two million, four hundred sixty-two thousand, fifty-five".