55628635 has 4 divisors (see below), whose sum is σ = 66754368. Its totient is φ = 44502904.

The previous prime is 55628633. The next prime is 55628717. The reversal of 55628635 is 53682655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55628635 - 2¹ = 55628633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55628633) 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, 5562859 + ... + 5562868.

It is an arithmetic number, because the mean of its divisors is an integer number (16688592).

Almost surely, 2^55628635 is an apocalyptic number.

55628635 is a deficient number, since it is larger than the sum of its proper divisors (11125733).

55628635 is a wasteful number, since it uses less digits than its factorization.

55628635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11125732.

The product of its digits is 216000, while the sum is 40.

The square root of 55628635 is about 7458.4606320607. The cubic root of 55628635 is about 381.7386510382.

The spelling of 55628635 in words is "fifty-five million, six hundred twenty-eight thousand, six hundred thirty-five".