1555452 has 18 divisors (see below), whose sum is σ = 3931928. Its totient is φ = 518472.

The previous prime is 1555429. The next prime is 1555469. The reversal of 1555452 is 2545551.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21568 + ... + 21639.

2^1555452 is an apocalyptic number.

1555452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1555452 is an abundant number, since it is smaller than the sum of its proper divisors (2376476).

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

1555452 is a wasteful number, since it uses less digits than its factorization.

1555452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43217 (or 43212 counting only the distinct ones).

The product of its digits is 5000, while the sum is 27.

The square root of 1555452 is about 1247.1776136541. The cubic root of 1555452 is about 115.8649836163.

Subtracting 1555452 from its reverse (2545551), we obtain a palindrome (990099).

It can be divided in two parts, 15554 and 52, that multiplied together give a palindrome (808808).

The spelling of 1555452 in words is "one million, five hundred fifty-five thousand, four hundred fifty-two".