55543455 has 64 divisors (see below), whose sum is σ = 109002240. Its totient is φ = 26611200.

The previous prime is 55543451. The next prime is 55543463. The reversal of 55543455 is 55434555.

It is not a de Polignac number, because 55543455 - 2² = 55543451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55543451) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 167640 + ... + 167970.

It is an arithmetic number, because the mean of its divisors is an integer number (1703160).

Almost surely, 2^55543455 is an apocalyptic number.

55543455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55543455 is a deficient number, since it is larger than the sum of its proper divisors (53458785).

55543455 is a wasteful number, since it uses less digits than its factorization.

55543455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 463 counting only the distinct ones).

The product of its digits is 150000, while the sum is 36.

The square root of 55543455 is about 7452.7481508501. The cubic root of 55543455 is about 381.5437088163.

Subtracting from 55543455 its reverse (55434555), we obtain a square (108900 = 330²).

It can be divided in two parts, 5554 and 3455, that added together give a palindrome (9009).

The spelling of 55543455 in words is "fifty-five million, five hundred forty-three thousand, four hundred fifty-five".