55271828 has 36 divisors (see below), whose sum is σ = 103796700. Its totient is φ = 25746432.

The previous prime is 55271809. The next prime is 55271831. The reversal of 55271828 is 82817255.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 10942864 + 44328964 = 3308^2 + 6658^2 .

It is a super-3 number, since 3×55271828³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55271791 and 55271800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158198 + ... + 158546.

Almost surely, 2^55271828 is an apocalyptic number.

It is an amenable number.

55271828 is a deficient number, since it is larger than the sum of its proper divisors (48524872).

55271828 is a wasteful number, since it uses less digits than its factorization.

55271828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 505 counting only the distinct ones).

The product of its digits is 44800, while the sum is 38.

The square root of 55271828 is about 7434.5025388388. The cubic root of 55271828 is about 380.9207312764.

The spelling of 55271828 in words is "fifty-five million, two hundred seventy-one thousand, eight hundred twenty-eight".