55443025 has 12 divisors (see below), whose sum is σ = 74999664. Its totient is φ = 40322000.

The previous prime is 55443023. The next prime is 55443053. The reversal of 55443025 is 52034455.

It is not a de Polignac number, because 55443025 - 2¹ = 55443023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55442984 and 55443002.

It is not an unprimeable number, because it can be changed into a prime (55443023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100531 + ... + 101080.

It is an arithmetic number, because the mean of its divisors is an integer number (6249972).

Almost surely, 2^55443025 is an apocalyptic number.

55443025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55443025 is a deficient number, since it is larger than the sum of its proper divisors (19556639).

55443025 is a wasteful number, since it uses less digits than its factorization.

55443025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201632 (or 201627 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 55443025 is about 7446.0073193625. The cubic root of 55443025 is about 381.3136093812.

It can be divided in two parts, 554430 and 25, that added together give a palindrome (554455).

The spelling of 55443025 in words is "fifty-five million, four hundred forty-three thousand, twenty-five".