55435556 has 12 divisors (see below), whose sum is σ = 105831600. Its totient is φ = 25197960.

The previous prime is 55435553. The next prime is 55435561. The reversal of 55435556 is 65553455.

It is not an unprimeable number, because it can be changed into a prime (55435553) 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, 629906 + ... + 629993.

It is an arithmetic number, because the mean of its divisors is an integer number (8819300).

Almost surely, 2^55435556 is an apocalyptic number.

It is an amenable number.

55435556 is a deficient number, since it is larger than the sum of its proper divisors (50396044).

55435556 is a wasteful number, since it uses less digits than its factorization.

55435556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259914 (or 1259912 counting only the distinct ones).

The product of its digits is 225000, while the sum is 38.

The square root of 55435556 is about 7445.5057585096. The cubic root of 55435556 is about 381.2964857409.

The spelling of 55435556 in words is "fifty-five million, four hundred thirty-five thousand, five hundred fifty-six".