2055405634 has 4 divisors (see below), whose sum is σ = 3083108454. Its totient is φ = 1027702816.

The previous prime is 2055405619. The next prime is 2055405701. The reversal of 2055405634 is 4365045502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1977136225 + 78269409 = 44465^2 + 8847^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2055405634.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513851407 + ... + 513851410.

Almost surely, 2^2055405634 is an apocalyptic number.

2055405634 is a deficient number, since it is larger than the sum of its proper divisors (1027702820).

2055405634 is a wasteful number, since it uses less digits than its factorization.

2055405634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027702819.

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 2055405634 is about 45336.5816311729. The cubic root of 2055405634 is about 1271.4496918249.

The spelling of 2055405634 in words is "two billion, fifty-five million, four hundred five thousand, six hundred thirty-four".