55554545 has 16 divisors (see below), whose sum is σ = 70267392. Its totient is φ = 42081600.

The previous prime is 55554539. The next prime is 55554559. The reversal of 55554545 is 54545555.

It is not a de Polignac number, because 55554545 - 2⁶ = 55554481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55554499 and 55554508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9224 + ... + 14006.

It is an arithmetic number, because the mean of its divisors is an integer number (4391712).

Almost surely, 2^55554545 is an apocalyptic number.

It is an amenable number.

55554545 is a deficient number, since it is larger than the sum of its proper divisors (14712847).

55554545 is a wasteful number, since it uses less digits than its factorization.

55554545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4912.

The product of its digits is 250000, while the sum is 38.

The square root of 55554545 is about 7453.4921345635. The cubic root of 55554545 is about 381.5691005757.

The spelling of 55554545 in words is "fifty-five million, five hundred fifty-four thousand, five hundred forty-five".