55145323100424 has 32 divisors (see below), whose sum is σ = 139228291002240. Its totient is φ = 18199776600000.

The previous prime is 55145323100381. The next prime is 55145323100443. The reversal of 55145323100424 is 42400132354155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11374857952 + ... + 11374862799.

It is an arithmetic number, because the mean of its divisors is an integer number (4350884093820).

Almost surely, 2^{55145323100424} is an apocalyptic number.

It is an amenable number.

55145323100424 is an abundant number, since it is smaller than the sum of its proper divisors (84082967901816).

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

55145323100424 is a wasteful number, since it uses less digits than its factorization.

55145323100424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22749720861 (or 22749720857 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 55145323100424 its reverse (42400132354155), we get a palindrome (97545455454579).

The spelling of 55145323100424 in words is "fifty-five trillion, one hundred forty-five billion, three hundred twenty-three million, one hundred thousand, four hundred twenty-four".