55303493 has 24 divisors (see below), whose sum is σ = 67536000. Its totient is φ = 44307648.

The previous prime is 55303489. The next prime is 55303529. The reversal of 55303493 is 39430355.

It is not a de Polignac number, because 55303493 - 2² = 55303489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55303463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277808 + ... + 278006.

It is an arithmetic number, because the mean of its divisors is an integer number (2814000).

Almost surely, 2^55303493 is an apocalyptic number.

It is an amenable number.

55303493 is a deficient number, since it is larger than the sum of its proper divisors (12232507).

55303493 is a wasteful number, since it uses less digits than its factorization.

55303493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 32.

The square root of 55303493 is about 7436.6318316829. The cubic root of 55303493 is about 380.9934600228.

The spelling of 55303493 in words is "fifty-five million, three hundred three thousand, four hundred ninety-three".