55573730 has 16 divisors (see below), whose sum is σ = 100220544. Its totient is φ = 22187760.

The previous prime is 55573723. The next prime is 55573747. The reversal of 55573730 is 3737555.

It is a super-3 number, since 3×55573730³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695 + ... + 10565.

It is an arithmetic number, because the mean of its divisors is an integer number (6263784).

Almost surely, 2^55573730 is an apocalyptic number.

55573730 is a deficient number, since it is larger than the sum of its proper divisors (44646814).

55573730 is a wasteful number, since it uses less digits than its factorization.

55573730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10441.

The product of its (nonzero) digits is 55125, while the sum is 35.

The square root of 55573730 is about 7454.7790041020. The cubic root of 55573730 is about 381.6130187387.

The spelling of 55573730 in words is "fifty-five million, five hundred seventy-three thousand, seven hundred thirty".