55280478123464 has 32 divisors (see below), whose sum is σ = 119725099682400. Its totient is φ = 23649402405120.

The previous prime is 55280478123463. The next prime is 55280478123473. The reversal of 55280478123464 is 46432187408255.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55280478123461) 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, 18476094134 + ... + 18476097125.

It is an arithmetic number, because the mean of its divisors is an integer number (3741409365075).

Almost surely, 2^{55280478123464} is an apocalyptic number.

It is an amenable number.

55280478123464 is an abundant number, since it is smaller than the sum of its proper divisors (64444621558936).

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

55280478123464 is a wasteful number, since it uses less digits than its factorization.

55280478123464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36952191293 (or 36952191289 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 59.

The spelling of 55280478123464 in words is "fifty-five trillion, two hundred eighty billion, four hundred seventy-eight million, one hundred twenty-three thousand, four hundred sixty-four".