55546257 has 8 divisors (see below), whose sum is σ = 79758784. Its totient is φ = 34182288.

The previous prime is 55546247. The next prime is 55546301. The reversal of 55546257 is 75264555.

55546257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55546257 - 2⁴ = 55546241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1424263 = 55546257 / (5 + 5 + 5 + 4 + 6 + 2 + 5 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55546217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712093 + ... + 712170.

It is an arithmetic number, because the mean of its divisors is an integer number (9969848).

Almost surely, 2^55546257 is an apocalyptic number.

It is an amenable number.

55546257 is a deficient number, since it is larger than the sum of its proper divisors (24212527).

55546257 is a wasteful number, since it uses less digits than its factorization.

55546257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424279.

The product of its digits is 210000, while the sum is 39.

The square root of 55546257 is about 7452.9361328271. The cubic root of 55546257 is about 381.5501246187.

It can be divided in two parts, 5554 and 6257, that added together give a palindrome (11811).

The spelling of 55546257 in words is "fifty-five million, five hundred forty-six thousand, two hundred fifty-seven".