50000005505478 has 48 divisors (see below), whose sum is σ = 116414603782704. Its totient is φ = 14274901428480.

The previous prime is 50000005505419. The next prime is 50000005505479. The reversal of 50000005505478 is 87450550000005.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50000005505479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63982575 + ... + 64759322.

It is an arithmetic number, because the mean of its divisors is an integer number (2425304245473).

Almost surely, 2^{50000005505478} is an apocalyptic number.

50000005505478 is an abundant number, since it is smaller than the sum of its proper divisors (66414598277226).

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

50000005505478 is a wasteful number, since it uses less digits than its factorization.

50000005505478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128743237 (or 128743230 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 39.

The spelling of 50000005505478 in words is "fifty trillion, five million, five hundred five thousand, four hundred seventy-eight".