1855955552 has 96 divisors (see below), whose sum is σ = 4311014400. Its totient is φ = 776980480.

The previous prime is 1855955533. The next prime is 1855955567. The reversal of 1855955552 is 2555595581.

It is a self number, because there is not a number n which added to its sum of digits gives 1855955552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277949 + ... + 284547.

It is an arithmetic number, because the mean of its divisors is an integer number (44906400).

Almost surely, 2^1855955552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1855955552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2155507200).

1855955552 is an abundant number, since it is smaller than the sum of its proper divisors (2455058848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1855955552 is a wasteful number, since it uses less digits than its factorization.

1855955552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6684 (or 6676 counting only the distinct ones).

The product of its digits is 2250000, while the sum is 50.

The square root of 1855955552 is about 43080.8025923380. The cubic root of 1855955552 is about 1228.9169199706.

The spelling of 1855955552 in words is "one billion, eight hundred fifty-five million, nine hundred fifty-five thousand, five hundred fifty-two".