3155401555 has 4 divisors (see below), whose sum is σ = 3786481872. Its totient is φ = 2524321240.

The previous prime is 3155401537. The next prime is 3155401589. The reversal of 3155401555 is 5551045513.

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

It is not a de Polignac number, because 3155401555 - 2¹⁷ = 3155270483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3155401555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315540151 + ... + 315540160.

It is an arithmetic number, because the mean of its divisors is an integer number (946620468).

Almost surely, 2^3155401555 is an apocalyptic number.

3155401555 is a deficient number, since it is larger than the sum of its proper divisors (631080317).

3155401555 is an equidigital number, since it uses as much as digits as its factorization.

3155401555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631080316.

The product of its (nonzero) digits is 37500, while the sum is 34.

The square root of 3155401555 is about 56172.9610666912. The cubic root of 3155401555 is about 1466.7346271597.

The spelling of 3155401555 in words is "three billion, one hundred fifty-five million, four hundred one thousand, five hundred fifty-five".