55443512025 has 72 divisors (see below), whose sum is σ = 108511831584. Its totient is φ = 26837395200.

The previous prime is 55443511979. The next prime is 55443512029. The reversal of 55443512025 is 52021534455.

55443512025 is a `hidden beast` number, since 5 + 5 + 443 + 5 + 1 + 202 + 5 = 666.

It is not a de Polignac number, because 55443512025 - 2⁶ = 55443511961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55443512029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1508922 + ... + 1545228.

It is an arithmetic number, because the mean of its divisors is an integer number (1507108772).

Almost surely, 2^55443512025 is an apocalyptic number.

55443512025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55443512025 is a deficient number, since it is larger than the sum of its proper divisors (53068319559).

55443512025 is a wasteful number, since it uses less digits than its factorization.

55443512025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36951 (or 36943 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 55443512025 in words is "fifty-five billion, four hundred forty-three million, five hundred twelve thousand, twenty-five".