55147853 has 4 divisors (see below), whose sum is σ = 56926848. Its totient is φ = 53368860.

The previous prime is 55147849. The next prime is 55147867. The reversal of 55147853 is 35874155.

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 55147853 - 2² = 55147849 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55147553) 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, 889451 + ... + 889512.

It is an arithmetic number, because the mean of its divisors is an integer number (14231712).

Almost surely, 2^55147853 is an apocalyptic number.

It is an amenable number.

55147853 is a deficient number, since it is larger than the sum of its proper divisors (1778995).

55147853 is a wasteful number, since it uses less digits than its factorization.

55147853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778994.

The product of its digits is 84000, while the sum is 38.

The square root of 55147853 is about 7426.1600440605. The cubic root of 55147853 is about 380.6357156737.

The spelling of 55147853 in words is "fifty-five million, one hundred forty-seven thousand, eight hundred fifty-three".