55561153 has 4 divisors (see below), whose sum is σ = 55824688. Its totient is φ = 55297620.

The previous prime is 55561147. The next prime is 55561159. The reversal of 55561153 is 35116555.

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 an interprime number because it is at equal distance from previous prime (55561147) and next prime (55561159).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55561153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55561159) 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, 131451 + ... + 131872.

It is an arithmetic number, because the mean of its divisors is an integer number (13956172).

Almost surely, 2^55561153 is an apocalyptic number.

It is an amenable number.

55561153 is a deficient number, since it is larger than the sum of its proper divisors (263535).

55561153 is a wasteful number, since it uses less digits than its factorization.

55561153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263534.

The product of its digits is 11250, while the sum is 31.

The square root of 55561153 is about 7453.9354035301. The cubic root of 55561153 is about 381.5842287028.

The spelling of 55561153 in words is "fifty-five million, five hundred sixty-one thousand, one hundred fifty-three".