55553307 has 4 divisors (see below), whose sum is σ = 74071080. Its totient is φ = 37035536.

The previous prime is 55553269. The next prime is 55553327. The reversal of 55553307 is 70335555.

It is a happy number.

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 55553307 - 2¹¹ = 55551259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55553327) 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, 9258882 + ... + 9258887.

It is an arithmetic number, because the mean of its divisors is an integer number (18517770).

Almost surely, 2^55553307 is an apocalyptic number.

55553307 is a deficient number, since it is larger than the sum of its proper divisors (18517773).

55553307 is a wasteful number, since it uses less digits than its factorization.

55553307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18517772.

The product of its (nonzero) digits is 39375, while the sum is 33.

The square root of 55553307 is about 7453.4090857808. The cubic root of 55553307 is about 381.5662662079.

The spelling of 55553307 in words is "fifty-five million, five hundred fifty-three thousand, three hundred seven".