1945538055 has 32 divisors (see below), whose sum is σ = 3662193600. Its totient is φ = 976582656.

The previous prime is 1945538047. The next prime is 1945538071. The reversal of 1945538055 is 5508355491.

1945538055 is a `hidden beast` number, since 1 + 94 + 553 + 8 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 1945538055 - 2³ = 1945538047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1945538055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421570 + ... + 426159.

It is an arithmetic number, because the mean of its divisors is an integer number (114443550).

Almost surely, 2^1945538055 is an apocalyptic number.

1945538055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1945538055 is a deficient number, since it is larger than the sum of its proper divisors (1716655545).

1945538055 is a wasteful number, since it uses less digits than its factorization.

1945538055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847760 (or 847754 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 45.

The square root of 1945538055 is about 44108.2538194384. The cubic root of 1945538055 is about 1248.3793514400.

The spelling of 1945538055 in words is "one billion, nine hundred forty-five million, five hundred thirty-eight thousand, fifty-five".