4155554 has 16 divisors (see below), whose sum is σ = 6748728. Its totient is φ = 1907712.

The previous prime is 4155551. The next prime is 4155583. The reversal of 4155554 is 4555514.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3478225 + 677329 = 1865^2 + 823^2 .

It is not an unprimeable number, because it can be changed into a prime (4155551) 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, 6914 + ... + 7490.

Almost surely, 2^4155554 is an apocalyptic number.

4155554 is a deficient number, since it is larger than the sum of its proper divisors (2593174).

4155554 is a wasteful number, since it uses less digits than its factorization.

4155554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its digits is 10000, while the sum is 29.

The square root of 4155554 is about 2038.5175986486. The cubic root of 4155554 is about 160.7717145779.

The spelling of 4155554 in words is "four million, one hundred fifty-five thousand, five hundred fifty-four".