3855155514550 has 24 divisors (see below), whose sum is σ = 7225326591912. Its totient is φ = 1530290736000.

The previous prime is 3855155514493. The next prime is 3855155514557. The reversal of 3855155514550 is 554155515583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855155514557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294280131 + ... + 294293230.

It is an arithmetic number, because the mean of its divisors is an integer number (301055274663).

Almost surely, 2^{3855155514550} is an apocalyptic number.

3855155514550 is a deficient number, since it is larger than the sum of its proper divisors (3370171077362).

3855155514550 is a wasteful number, since it uses less digits than its factorization.

3855155514550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588573504 (or 588573499 counting only the distinct ones).

The product of its (nonzero) digits is 7500000, while the sum is 52.

The spelling of 3855155514550 in words is "three trillion, eight hundred fifty-five billion, one hundred fifty-five million, five hundred fourteen thousand, five hundred fifty".