55887628 has 6 divisors (see below), whose sum is σ = 97803356. Its totient is φ = 27943812.

The previous prime is 55887593. The next prime is 55887641. The reversal of 55887628 is 82678855.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985950 + ... + 6985957.

Almost surely, 2^55887628 is an apocalyptic number.

It is an amenable number.

55887628 is a deficient number, since it is larger than the sum of its proper divisors (41915728).

55887628 is a wasteful number, since it uses less digits than its factorization.

55887628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13971911 (or 13971909 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 49.

The square root of 55887628 is about 7475.8028331411. The cubic root of 55887628 is about 382.3301605474.

The spelling of 55887628 in words is "fifty-five million, eight hundred eighty-seven thousand, six hundred twenty-eight".