5855138949 has 8 divisors (see below), whose sum is σ = 8516565792. Its totient is φ = 3548569040.

The previous prime is 5855138941. The next prime is 5855138977. The reversal of 5855138949 is 9498315585.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5855138949 - 2³ = 5855138941 is a prime.

It is a super-2 number, since 2×5855138949² = 68565304224193649202, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5855138941) 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, 88714194 + ... + 88714259.

It is an arithmetic number, because the mean of its divisors is an integer number (1064570724).

Almost surely, 2^5855138949 is an apocalyptic number.

It is an amenable number.

5855138949 is a deficient number, since it is larger than the sum of its proper divisors (2661426843).

5855138949 is a wasteful number, since it uses less digits than its factorization.

5855138949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177428467.

The product of its digits is 7776000, while the sum is 57.

The square root of 5855138949 is about 76518.8796899170. The cubic root of 5855138949 is about 1802.3774088856.

The spelling of 5855138949 in words is "five billion, eight hundred fifty-five million, one hundred thirty-eight thousand, nine hundred forty-nine".