55464257 has 4 divisors (see below), whose sum is σ = 55554480. Its totient is φ = 55374036.

The previous prime is 55464229. The next prime is 55464259. The reversal of 55464257 is 75246455.

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 55464257 - 2⁸ = 55464001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55464257.

It is not an unprimeable number, because it can be changed into a prime (55464259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44183 + ... + 45420.

It is an arithmetic number, because the mean of its divisors is an integer number (13888620).

Almost surely, 2^55464257 is an apocalyptic number.

It is an amenable number.

55464257 is a deficient number, since it is larger than the sum of its proper divisors (90223).

55464257 is an equidigital number, since it uses as much as digits as its factorization.

55464257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90222.

The product of its digits is 168000, while the sum is 38.

The square root of 55464257 is about 7447.4329134273. The cubic root of 55464257 is about 381.3622780659.

The spelling of 55464257 in words is "fifty-five million, four hundred sixty-four thousand, two hundred fifty-seven".