55320536 has 8 divisors (see below), whose sum is σ = 103726020. Its totient is φ = 27660264.

The previous prime is 55320481. The next prime is 55320541. The reversal of 55320536 is 63502355.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 55320499 and 55320508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3457526 + ... + 3457541.

Almost surely, 2^55320536 is an apocalyptic number.

It is an amenable number.

55320536 is a deficient number, since it is larger than the sum of its proper divisors (48405484).

55320536 is a wasteful number, since it uses less digits than its factorization.

55320536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915073 (or 6915069 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 55320536 is about 7437.7776250705. Note that the first 3 decimals coincide. The cubic root of 55320536 is about 381.0325932028.

The spelling of 55320536 in words is "fifty-five million, three hundred twenty thousand, five hundred thirty-six".