55815353 has 4 divisors (see below), whose sum is σ = 60889488. Its totient is φ = 50741220.

The previous prime is 55815349. The next prime is 55815377. The reversal of 55815353 is 35351855.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55815353 - 2² = 55815349 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55815653) 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, 2537051 + ... + 2537072.

It is an arithmetic number, because the mean of its divisors is an integer number (15222372).

Almost surely, 2^55815353 is an apocalyptic number.

It is an amenable number.

55815353 is a deficient number, since it is larger than the sum of its proper divisors (5074135).

55815353 is a wasteful number, since it uses less digits than its factorization.

55815353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074134.

The product of its digits is 45000, while the sum is 35.

The square root of 55815353 is about 7470.9673403114. The cubic root of 55815353 is about 382.1652771094.

The spelling of 55815353 in words is "fifty-five million, eight hundred fifteen thousand, three hundred fifty-three".