55501288 has 8 divisors (see below), whose sum is σ = 104064930. Its totient is φ = 27750640.

The previous prime is 55501267. The next prime is 55501289. The reversal of 55501288 is 88210555.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54730404 + 770884 = 7398^2 + 878^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (55501289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3468823 + ... + 3468838.

Almost surely, 2^55501288 is an apocalyptic number.

It is an amenable number.

55501288 is a deficient number, since it is larger than the sum of its proper divisors (48563642).

55501288 is a wasteful number, since it uses less digits than its factorization.

55501288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6937667 (or 6937663 counting only the distinct ones).

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

The square root of 55501288 is about 7449.9186572741. The cubic root of 55501288 is about 381.4471320212.

The spelling of 55501288 in words is "fifty-five million, five hundred one thousand, two hundred eighty-eight".