56542206155412 has 24 divisors (see below), whose sum is σ = 134421093880416. Its totient is φ = 18491790692128.

The previous prime is 56542206155411. The next prime is 56542206155417. The reversal of 56542206155412 is 21455160224565.

It is a super-2 number, since 2×56542206155412² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56542206155411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44451419298 + ... + 44451420569.

It is an arithmetic number, because the mean of its divisors is an integer number (5600878911684).

Almost surely, 2^{56542206155412} is an apocalyptic number.

It is an amenable number.

56542206155412 is an abundant number, since it is smaller than the sum of its proper divisors (77878887725004).

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

56542206155412 is a wasteful number, since it uses less digits than its factorization.

56542206155412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88902839927 (or 88902839925 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 48.

Adding to 56542206155412 its reverse (21455160224565), we get a palindrome (77997366379977).

The spelling of 56542206155412 in words is "fifty-six trillion, five hundred forty-two billion, two hundred six million, one hundred fifty-five thousand, four hundred twelve".