55147628 has 12 divisors (see below), whose sum is σ = 96560352. Its totient is φ = 27558960.

The previous prime is 55147601. The next prime is 55147637. The reversal of 55147628 is 82674155.

It is a junction number, because it is equal to n+sod(n) for n = 55147591 and 55147600.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12626 + ... + 16422.

It is an arithmetic number, because the mean of its divisors is an integer number (8046696).

Almost surely, 2^55147628 is an apocalyptic number.

It is an amenable number.

55147628 is a deficient number, since it is larger than the sum of its proper divisors (41412724).

55147628 is a wasteful number, since it uses less digits than its factorization.

55147628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7432 (or 7430 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 55147628 is about 7426.1448948967. The cubic root of 55147628 is about 380.6351980159.

The spelling of 55147628 in words is "fifty-five million, one hundred forty-seven thousand, six hundred twenty-eight".