55526573 has 4 divisors (see below), whose sum is σ = 58792860. Its totient is φ = 52260288.

The previous prime is 55526557. The next prime is 55526629. The reversal of 55526573 is 37562555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47306884 + 8219689 = 6878^2 + 2867^2 .

It is a cyclic number.

It is not a de Polignac number, because 55526573 - 2⁴ = 55526557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55526533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633118 + ... + 1633151.

It is an arithmetic number, because the mean of its divisors is an integer number (14698215).

Almost surely, 2^55526573 is an apocalyptic number.

It is an amenable number.

55526573 is a deficient number, since it is larger than the sum of its proper divisors (3266287).

55526573 is a wasteful number, since it uses less digits than its factorization.

55526573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266286.

The product of its digits is 157500, while the sum is 38.

The square root of 55526573 is about 7451.6154624350. The cubic root of 55526573 is about 381.5050491543.

The spelling of 55526573 in words is "fifty-five million, five hundred twenty-six thousand, five hundred seventy-three".