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55369433 = 77909919
BaseRepresentation
bin1101001100110…
…1111011011001
310212012001120202
43103031323121
5103133310213
65254431545
71241426630
oct323157331
9125161522
1055369433
1129288969
12166625b5
13b6183a2
1474d4517
154cdab58
hex34cded9

55369433 has 4 divisors (see below), whose sum is σ = 63279360. Its totient is φ = 47459508.

The previous prime is 55369429. The next prime is 55369511. The reversal of 55369433 is 33496355.

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 55369433 - 22 = 55369429 is a prime.

It is a super-2 number, since 2×553694332 = 6131548221482978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55365433) 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, 3954953 + ... + 3954966.

It is an arithmetic number, because the mean of its divisors is an integer number (15819840).

Almost surely, 255369433 is an apocalyptic number.

It is an amenable number.

55369433 is a deficient number, since it is larger than the sum of its proper divisors (7909927).

55369433 is an equidigital number, since it uses as much as digits as its factorization.

55369433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7909926.

The product of its digits is 145800, while the sum is 38.

The square root of 55369433 is about 7441.0639696215. The cubic root of 55369433 is about 381.1448231595.

The spelling of 55369433 in words is "fifty-five million, three hundred sixty-nine thousand, four hundred thirty-three".

Divisors: 1 7 7909919 55369433