2100055478 has 8 divisors (see below), whose sum is σ = 3151547400. Its totient is φ = 1049539680.

The previous prime is 2100055471. The next prime is 2100055483. The reversal of 2100055478 is 8745500012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100055471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238628 + ... + 247271.

It is an arithmetic number, because the mean of its divisors is an integer number (393943425).

Almost surely, 2^2100055478 is an apocalyptic number.

2100055478 is a deficient number, since it is larger than the sum of its proper divisors (1051491922).

2100055478 is a wasteful number, since it uses less digits than its factorization.

2100055478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488062.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 2100055478 is about 45826.3622601664. The cubic root of 2100055478 is about 1280.5904417090.

The spelling of 2100055478 in words is "two billion, one hundred million, fifty-five thousand, four hundred seventy-eight".