55526645 has 16 divisors (see below), whose sum is σ = 70371840. Its totient is φ = 41943744.

The previous prime is 55526629. The next prime is 55526663. The reversal of 55526645 is 54662555.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55526645 - 2⁴ = 55526629 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55526599 and 55526608.

It is a congruent number.

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, 34652 + ... + 36218.

It is an arithmetic number, because the mean of its divisors is an integer number (4398240).

Almost surely, 2^55526645 is an apocalyptic number.

It is an amenable number.

55526645 is a deficient number, since it is larger than the sum of its proper divisors (14845195).

55526645 is a wasteful number, since it uses less digits than its factorization.

55526645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964.

The product of its digits is 180000, while the sum is 38.

The square root of 55526645 is about 7451.6202936006. The cubic root of 55526645 is about 381.5052140504.

The spelling of 55526645 in words is "fifty-five million, five hundred twenty-six thousand, six hundred forty-five".