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57455 = 511491
BaseRepresentation
bin1110000001101111
32220210222
432001233
53314310
61121555
7326336
oct160157
986728
1057455
113a192
12292bb
13201c8
1416d1d
1512055
hexe06f

57455 has 4 divisors (see below), whose sum is σ = 68952. Its totient is φ = 45960.

The previous prime is 57427. The next prime is 57457. The reversal of 57455 is 55475.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57455 - 210 = 56431 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 (57457) 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, 5741 + ... + 5750.

It is an arithmetic number, because the mean of its divisors is an integer number (17238).

257455 is an apocalyptic number.

57455 is a deficient number, since it is larger than the sum of its proper divisors (11497).

57455 is a wasteful number, since it uses less digits than its factorization.

57455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11496.

The product of its digits is 3500, while the sum is 26.

The square root of 57455 is about 239.6977263138. The cubic root of 57455 is about 38.5871416808.

It can be divided in two parts, 57 and 455, that added together give a 9-th power (512 = 29).

The spelling of 57455 in words is "fifty-seven thousand, four hundred fifty-five".

Divisors: 1 5 11491 57455