3855506537 has 4 divisors (see below), whose sum is σ = 4023137280. Its totient is φ = 3687875796.

The previous prime is 3855506531. The next prime is 3855506561. The reversal of 3855506537 is 7356055583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3855506537 - 2²⁰ = 3854457961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3855506491 and 3855506500.

It is not an unprimeable number, because it can be changed into a prime (3855506531) 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, 83815337 + ... + 83815382.

It is an arithmetic number, because the mean of its divisors is an integer number (1005784320).

Almost surely, 2^3855506537 is an apocalyptic number.

It is an amenable number.

3855506537 is a deficient number, since it is larger than the sum of its proper divisors (167630743).

3855506537 is a wasteful number, since it uses less digits than its factorization.

3855506537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167630742.

The product of its (nonzero) digits is 1890000, while the sum is 47.

The square root of 3855506537 is about 62092.7253146454. The cubic root of 3855506537 is about 1568.0520741472.

The spelling of 3855506537 in words is "three billion, eight hundred fifty-five million, five hundred six thousand, five hundred thirty-seven".