55371457 has 4 divisors (see below), whose sum is σ = 55390896. Its totient is φ = 55352020.

The previous prime is 55371391. The next prime is 55371467. The reversal of 55371457 is 75417355.

55371457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55371457 - 2¹¹ = 55369409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55371467) 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 3 ways as a sum of consecutive naturals, for example, 4519 + ... + 11452.

It is an arithmetic number, because the mean of its divisors is an integer number (13847724).

Almost surely, 2^55371457 is an apocalyptic number.

It is an amenable number.

55371457 is a deficient number, since it is larger than the sum of its proper divisors (19439).

55371457 is a wasteful number, since it uses less digits than its factorization.

55371457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19438.

The product of its digits is 73500, while the sum is 37.

The square root of 55371457 is about 7441.1999704349. The cubic root of 55371457 is about 381.1494672846.

It can be divided in two parts, 553 and 71457, that added together give a triangular number (72010 = T₃₇₉).

The spelling of 55371457 in words is "fifty-five million, three hundred seventy-one thousand, four hundred fifty-seven".