55528801 has 4 divisors (see below), whose sum is σ = 56883204. Its totient is φ = 54174400.

The previous prime is 55528799. The next prime is 55528807. The reversal of 55528801 is 10882555.

It is a happy number.

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 12285025 + 43243776 = 3505^2 + 6576^2 .

It is a cyclic number.

It is not a de Polignac number, because 55528801 - 2¹ = 55528799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55528807) 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, 677140 + ... + 677221.

It is an arithmetic number, because the mean of its divisors is an integer number (14220801).

Almost surely, 2^55528801 is an apocalyptic number.

It is an amenable number.

55528801 is a deficient number, since it is larger than the sum of its proper divisors (1354403).

55528801 is a wasteful number, since it uses less digits than its factorization.

55528801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354402.

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 55528801 is about 7451.7649587195. The cubic root of 55528801 is about 381.5101517075.

The spelling of 55528801 in words is "fifty-five million, five hundred twenty-eight thousand, eight hundred one".